Citation Nr: 1036613 Decision Date: 09/28/10 Archive Date: 10/05/10 DOCKET NO. 07-00 346A ) DATE ) ) On appeal from the Department of Veterans Affairs Regional Office in Houston, Texas THE ISSUES 1. Entitlement to an initial evaluation in excess of 30 percent for posttraumatic stress disorder (PTSD). 2. Entitlement to service connection for diabetes mellitus (DM), to include as secondary to in-service herbicide exposure. 3. Entitlement to service connection for hypertension, to include as secondary to diabetes mellitus. REPRESENTATION Appellant represented by: Texas Veterans Commission ATTORNEY FOR THE BOARD M. Hannan, Counsel INTRODUCTION The Veteran appellant served on active duty in the United States Air Force from March 1965 to January 1969, including a one-year tour of duty in Vietnam; he was awarded the Distinguished Flying Cross and three Air Medals. Thereafter, he was a member of the Air Force Reserve from January 1969 to March 1971. This was followed by his re-entry into active duty; he served on active duty from May 1971 until August 1993, when he retired. This case comes before the Board of Veterans' Appeals (Board) on appeal from a February 2006 rating decision issued by the above Regional Office (RO) of the Department of Veterans Affairs (VA) which, in part, denied the appellant's claim of entitlement to service connection for diabetes mellitus, as well as his claim for hypertension secondary to diabetes mellitus. The Veteran is also appealing a May 2006 RO rating decision in which his claim for service connection for posttraumatic stress disorder was granted and an evaluation of 30 percent was assigned, effective from the date of the claim. The Veteran appealed the initial evaluation that was assigned for the PTSD disability. He is, in effect, asking for a higher rating effective from the date service connection was granted (March 15, 2006). See Fenderson v. West, 12 Vet. App. 119 (1999). The issue of entitlement to service connection for hypertension, to include as secondary to diabetes mellitus, is herein REMANDED to the RO via the Appeals Management Center (AMC), in Washington, DC. VA will notify the appellant when further action is required. FINDINGS OF FACT 1. Throughout the rating period on appeal, the Veteran's PTSD has been manifested by symptoms including nervousness and a lack of trust, selective social isolation, difficulty sleeping, nightmares, depression, intermittent anxiety, problems with his temper, intrusive thoughts, hypervigilance and exaggerated startle response. The PTSD has been productive of occupational and social impairment with occasional decrease in work efficiency and intermittent periods of inability to perform occupational tasks, but not reduced reliability and productivity. 2. There is no evidence of record to demonstrate that the appellant has received any treatment or medication for his PTSD disability since March 2006. 3. Since March 2006, the Veteran's clinical Global Assessment of Functioning scores have ranged from 50 to 60. 4. Service personnel records reflect that the Veteran served on the ground in the Republic of Vietnam during his first period of active service from March 1965 to January 1969. 5. It is at least as likely as not that the Veteran has diabetes mellitus (DM) type 2 which is attributable to his active military service. CONCLUSIONS OF LAW 1. The criteria for an initial evaluation in excess of 30 percent for PTSD have not been met at any time. 38 U.S.C.A. §§ 1155, 5103(a), 5103A (West 2002 & Supp. 2010); 38 C.F.R. §§ 4.1, 4.7, 4.22, 4.114, Diagnostic Code (DC) 9411 (2010); Fenderson v. West, 12 Vet. App. 119 (1999). 2. With resolution of reasonable doubt in the appellant's favor, the criteria for service connection for diabetes mellitus type 2, to include as due to Agent Orange exposure, have been met. 38 U.S.C.A. §§ 1110, 5103, 5103A, 5107(a) (West 2002 & Supp. 2010); 38 C.F.R. §§ 3.102, 3.159, 3.303, 3.307, 3.309 (2010). REASONS AND BASES FOR FINDINGS AND CONCLUSIONS The appellant contends that he is entitled to an evaluation in excess of 30 percent for his PTSD disability because his symptoms are commensurate with those associated with a 50 percent evaluation. He also contends that he is entitled to service connection for DM, to include as based on his exposure to herbicides during his active duty in Vietnam. I. Duty to Notify and Assist The Veterans Claims Assistance Act of 2000 (VCAA) enhanced VA's duty to notify and assist claimants in substantiating their claims for VA benefits, as codified in pertinent part at 38 U.S.C.A. §§ 5103, 5103A, 5107, 5126 (West 2002 & Supp. 2010); 38 C.F.R. §§ 3.102, 3.159, 3.326(a) (2010). Given the fully favorable decision on the matter of service connection for DM contained herein, the Board finds that any defect in the notice or assistance provided to the Veteran in relation to that issue constitutes harmless error. Upon receipt of a complete or substantially complete application for benefits, VA is required to notify the claimant and his representative of any information, and any medical or lay evidence, that is necessary to substantiate the claim. 38 U.S.C.A. § 5103(a); 38 C.F.R. § 3.159(b); Quartuccio v. Principi, 16 Vet. App. 183 (2002). Proper notice from VA must inform the claimant of any information and evidence not of record (1) that is necessary to substantiate the claim; (2) that VA will seek to provide; and (3) that the claimant is expected to provide, in accordance with 38 C.F.R. § 3.159(b)(1) (2009). This notice must be provided prior to an initial unfavorable decision on a claim by the RO. Mayfield v. Nicholson, 444 F.3d 1328 (Fed. Cir. 2006); Pelegrini v. Principi, 18 Vet. App. 112 (2004). In addition, the decision of the United States Court of Appeals for Veterans Claims (Court), in Dingess v. Nicholson, 19 Vet. App. 473 (2006), requires more extensive notice in claims for compensation, e.g., as to potential downstream issues such as disability rating and effective date. In a claim for increase, the VCAA requirement is generic notice, that is, the type of evidence needed to substantiate the claim, namely, evidence demonstrating a worsening or increase in severity of the disability and the effect that worsening has on employment, as well as general notice regarding how disability ratings and effective dates are assigned. Vazquez-Flores v. Shinseki, 580 F.3d 1270 (2009). The appellant's PTSD claim arises from his disagreement with the initial evaluation assigned for that disability following the grant of service connection. The United States Court of Appeals for Veterans Claims (Court), quoting from the legislative history of the VCAA, has held that, in cases where service connection has been granted and an initial disability rating and effective date have been assigned, the typical service-connection claim has been more than substantiated - it has been proven, thereby rendering notice under 38 U.S.C.A. § 5103(a) notice no longer required because the purpose that the notice is intended to serve has been fulfilled. Dingess v. Nicholson, supra, at 491. In addition, to whatever extent the decision of the Court in Dingess, supra, requires more extensive notice in claims for compensation, e.g., as to potential downstream issues such as disability rating and effective date, VA letters dated in April 2006, may 2006, and October 2006, contained the information required by Dingess. The appellant has had ample opportunity to respond/supplement the record and he has not alleged that notice in this case was less than adequate. See Goodwin v. Peake, 22 Vet. App. 128, 137 (2008) (holding that "where a claim has been substantiated after the enactment of the VCAA, the appellant bears the burden of demonstrating any prejudice from defective VCAA notice with respect to the downstream issues"). The United States Supreme Court has held that an error in VCAA notice should not be presumed prejudicial, and that the burden of showing harmful error rests with the party raising the issue, to be determined on a case-by-case basis. Shinseki v. Sanders, 129 S. Ct. 1696 (2009). In this case, neither the Veteran nor his representative has alleged any prejudicial or harmful error in VCAA notice, and the Board finds, based the factors discussed above, that no prejudicial or harmful error in VCAA notice has been demonstrated in this case. VA must also make reasonable efforts to assist the claimant in obtaining evidence necessary to substantiate the claim for the benefit sought, unless no reasonable possibility exists that such assistance would aid in substantiating the claim. 38 U.S.C.A. § 5103A(a); 38 C.F.R. § 3.159(c), (d). Here, the appellant's service treatment records (STRs), dated between 1965 and 1993, have been associated with the claims file. In addition, his VA treatment records, dated between 2006 and 2009, and his retired military treatment records dated between 1993 and 2001, have been associated with the claims file. Private records are also in evidence. The Veteran was afforded VA PTSD examinations in April 2006, and August 2009. A medical opinion is adequate when it is based upon consideration of the appellant's prior medical history and examinations and also describes the disability in sufficient detail so that the Board's "evaluation of the claimed disability will be a fully informed one." Barr v. Nicholson, 21 Vet. App. 303, 311 (2007) (quoting Green v. Derwinski, 1 Vet. App. 121, 124 (1991)). Both VA PTSD examinations were conducted by health care professionals, and the associated reports reflect review of the appellant's claims file. The examinations included reports of the history and symptoms of the appellant's PTSD-related problems and demonstrated objective evaluation. The examiners were able to assess and record the condition of the appellant's PTSD symptomatology. The Board finds that the examination reports are sufficiently detailed with recorded history and clinical findings, opinions and supporting rationale to be adequate for rating purposes. In addition, it is not shown that either examination was in any way incorrectly prepared or that either VA examiner failed to address the clinical significance of the appellant's psychiatric disability. The Board finds that the examination reports are sufficiently detailed with recorded history, impact on employment and daily life, and clinical findings. Therefore, the Board concludes that the Veteran was afforded adequate examinations. Nieves-Rodriguez v. Peake, 22 Vet. App. 295 (2008). As a result, the Board finds that additional development by way of another examination would be redundant and unnecessary. See 38 C.F.R. § 3.326 and 38 C.F.R. § 3.327; Green v. Derwinski, 1 Vet. App. 121 (1991). The appellant was informed about the kind of evidence that was required and the kinds of assistance VA would provide and he was supplied with the text of 38 C.F.R. § 3.159. He did not provide any information to VA concerning available relevant treatment records that he wanted the RO to obtain for him that were not obtained. He had previously been given more than one year in which to submit evidence after the RO gave him notification of his rights under the pertinent statute and regulations. Thus, it appears that all obtainable evidence identified by the Veteran relative to his claim has been obtained and associated with the claims file. Therefore, there is no duty to assist that was unmet, and the Board finds no prejudice to the Veteran in proceeding with the issuance of a final decision. See Bernard v. Brown, 4 Vet. App. 384, 394 (1993) (where the Board addresses a question that has not been addressed by the agency of original jurisdiction, the Board must consider whether the veteran has been prejudiced thereby). Hence, no further notice or assistance to the appellant is required to fulfill VA's duty to assist the appellant in the development of the claim. Smith v. Gober, 14 Vet. App. 227 (2000), aff'd 281 F.3d 1384 (Fed. Cir. 2002); Dela Cruz v. Principi, 15 Vet. App. 143 (2001); see also Quartuccio v. Principi, 16 Vet. App. 183 (2002). Therefore, the Board turns to the merits of the claims. II. Merits of the Claims In adjudicating a claim, the Board determines whether (1) the weight of the evidence supports the claim or, (2) whether the weight of the "positive" evidence in favor of the claim is in relative balance with the weight of the "negative" evidence against the claim. The appellant prevails in either event. However, if the weight of the evidence is against the appellant's claim, the claim must be denied. 38 U.S.C.A. § 5107(b); 38 C.F.R. § 3.102; Gilbert v. Derwinski, 1 Vet. App. 49 (1990). A. Increased initial rating for PTSD The law provides that disability evaluations are determined by the application of a schedule of ratings that is based upon an average impairment of earning capacity. 38 U.S.C.A. § 1155; 38 C.F.R. § 4.1. Separate diagnostic codes identify the various disabilities. Where there is a reasonable doubt as to the degree of disability, such doubt will be resolved in favor of the claimant. 38 C.F.R. §§ 3.102, 4.3, 4.7. In addition, the Board will consider the potential application of the various other provisions of 38 C.F.R., Parts 3 and 4, whether they were raised by the appellant or not, as well as the entire history of the Veteran's disability in reaching its decision, as required by Schafrath v. Derwinski, 1 Vet. App. 589 (1991). In the evaluation of service-connected disabilities, the entire recorded history, including medical and industrial history, is considered so that a report of a rating examination, and the evidence as a whole, may yield a current rating which accurately reflects all elements of disability, including the effects on ordinary activity. 38 C.F.R. §§ 4.1, 4.2, 4.10, 4.41. In this case the evidence reviewed includes the reports of the VA PTSD examinations conducted in April 2006, and August 2009; the reports of VA medical treatment dated between March 2006 and December 2009; the report of a private psychiatric evaluation conducted in April 2006; and various written statements submitted by the Veteran and his representative. While a veteran's entire history is reviewed when assigning a disability evaluation, 38 C.F.R. § 4.1, where service connection has already been established and an increase in the disability rating is at issue, it is the present level of disability that is of primary concern. Francisco v. Brown, 7 Vet. App. 55 (1994). In determining the present level of a disability for any increased evaluation claim, the Board must consider the application of staged ratings. See Hart v. Mansfield, 21 Vet. App. 505 (2007). In other words, where the evidence contains factual findings that demonstrate distinct time periods in which the service-connected disability exhibited diverse symptoms meeting the criteria for different ratings during the course of the appeal, the assignment of staged ratings would be necessary. Where there is a question as to which of two disability evaluations shall be applied, the higher evaluation will be assigned if the disability picture more nearly approximates the criteria required for that rating. Otherwise, the lower rating will be assigned. 38 C.F.R. § 4.7. Review of the appellant's VA medical treatment records dated between 2006 and 2009 does not reveal any treatment for PTSD. Likewise, his retired military treatment records, dated between 1993 and 2001, contain no mention of any treatment for PTSD. In addition, there is no indication that he was ever prescribed medication for PTSD. The appellant underwent a private psychiatric evaluation in April 2006. He complained of having trouble sleeping and of nightmares. The appellant said that he woke up several times a night and that half of the time he would awake all frightened. His wife stated that the appellant would check and triple-check the doors and windows; that he had very few friends; that he had increased temper problems and would get quite angry at times; and that he was quite jumpy with loud noises. The appellant himself complained of nervousness and a lack of trust. The examiner noted that the appellant's appearance and hygiene were appropriate. On mental status examination, the appellant was alert and oriented times four. His behavior was somewhat withdrawn and his mood was subdued. The appellant was able to communicate effectively and his speech was normal in rate and volume. The examiner stated that the appellant had no difficulty with concentration; no history of, or evidence of, delusions, hallucinations, illusions, suicidal ideation, homicidal ideation or obsessional rituals; no impairment of judgment or abstract thinking; and intact recent and remote memory. No panic attacks were noted or described by the appellant. The appellant's thought processes were intact and goal-oriented. The psychiatrist rendered an Axis I diagnosis of PTSD and assigned a GAF score of 50 on Axis V for both the current and past year period. The appellant underwent a VA PTSD examination in April 2006; the examiner reviewed the claims file. The examiner described the Veteran as being neatly groomed and dressed. He complained of recurrent intrusive thoughts and nightmares; exaggerated startle response; hypervigilance; selective social isolation and withdrawal; intermittent anxiety and insomnia; intermittent feelings of hopelessness, helplessness and despair; and worsening of symptoms due to the recent Iraq war. He reported having difficulty falling asleep and waking frequently due to nightmares. He also said that he slept with a weapon in his nightstand and that he heard and responded to every sound. The examiner noted that the appellant was not getting any treatment and that he had never received any psychiatric treatment. The appellant reported that he was employed as a teacher and that he and his wife had been married for 36 years; he said that the marriage was good and that his wife was supportive. On mental status examination, the appellant was alert and oriented times four. He had logical, coherent and relevant speech. His affect was somewhat constricted. The appellant denied, and there was no evidence of, hallucinations; delusions; suicidal ideation; or homicidal ideation. The appellant's immediate, recent and remote memory functions were intact. The appellant's insight, ability to abstract, judgment and reality testing were all within normal limits. The appellant exhibited no inappropriate ritualistic or obsessive behaviors. The examiner rendered an Axis I diagnosis of PTSD and assigned a current GAF score of 50 on Axis V. At another VA PTSD examination in August 2009; the examiner reviewed the claims file and noted that the Veteran was not currently in receipt of any psychiatric treatment. His wife stated that he got emotional and cried a lot. She said that his memory and concentration were poor and that he forgot a lot. She further reported that the appellant was very talkative; that he had trouble focusing; that he isolated at times; that he frequently got upset; that she thought that he was depressed every day; that he did not sleep well at night; that he would have violent nightmares and wake up to check the door and locks; that his appetite and interest were fine; that his energy was good when he exercised; and that he had mild anxiety during stressful situations. The appellant reported that he had stopped working in 2007, when he retired; the examiner noted that the retirement was not due to the PTSD. The appellant also reported being married for 39 years, and having a good relationship with his wife. He stated that he got along well with others. The appellant denied suicidal ideation, homicidal ideation, history of suicide attempts and history of violence or assaultiveness. On mental status examination, the appellant was oriented times three and exhibited a depressed mood. His thought processes and content were unremarkable. There were no delusions, hallucinations, inappropriate behaviors, or obsessive or ritualistic behaviors. He had good impulse control. The examiner described the appellant as cooperative, friendly, relaxed and attentive. The examiner indicated that the appellant's remote memory was normal and that his recent memory and his immediate memory were mildly impaired. The examiner also indicated that the appellant occasionally had mild anxiety problems and that he had no problems with his activities of daily living. The examiner noted that the appellant still had mild symptoms of PTSD and that, on some days, he had no symptoms. The examiner rendered a diagnosis of PTSD and assigned a GAF score of 60 on Axis V. The examiner stated that the appellant had some cognitive problems that were not related to PTSD, that he had no reduced reliability or productivity due to PTSD and that his PTSD symptoms were not severe enough to interfere with his occupational or social functioning. The examiner concluded that the PTSD had not gotten worse. When evaluating a mental disorder, the rating agency shall consider the frequency, severity, and duration of psychiatric symptoms, length of remissions, and the veteran's capacity for adjustment during periods of remission. 38 C.F.R. § 4.126(a). The rating agency shall assign an evaluation based on all the evidence of record that bears on occupational and social impairment rather than solely on the examiner's assessment of the level of disability at the moment of the examination. Id. However, when evaluating the level of disability from a mental disorder, the rating agency will consider the extent of social impairment, but shall not assign an evaluation on the basis of social impairment. 38 C.F.R. § 4.126(b). The current regulations state that, under the General Rating Formula for Mental Disorders, a 30 percent evaluation will be assigned for occupational and social impairment with occasional decrease in work efficiency and intermittent periods of inability to perform occupational tasks (although generally functioning satisfactorily, with routine behavior, self-care, and conversation normal), due to such symptoms as: depressed mood, anxiety, suspiciousness, panic attacks (weekly or less often), chronic sleep impairment, mild memory loss (such as forgetting names, directions, recent events). A 50 percent rating is assigned for occupational and social impairment with reduced reliability and productivity due to such symptoms as: flattened affect; circumstantial, circumlocutory, or stereotyped speech; panic attacks more than once a week; difficulty in understanding complex commands; impairment of short- and long-term memory (e.g., retention of only highly learned material, forgetting to complete tasks); impaired judgment; impaired abstract thinking; disturbances of motivation and mood; difficulty in establishing and maintaining effective work and social relationships. A 70 percent rating is assigned for occupational and social impairment, with deficiencies in most areas, such as work, school, family relations, judgment, thinking, or mood, due to such symptoms as: suicidal ideation; obsessional rituals which interfere with routine activities; speech intermittently illogical, obscure, or irrelevant; near-continuous panic or depression affecting the ability to function independently, appropriately and effectively; impaired impulse control (such as unprovoked irritability with periods of violence); spatial disorientation; neglect of personal appearance and hygiene; difficulty in adapting to stressful circumstances (including work or a worklike setting); inability to establish and maintain effective relationships. A total occupational and social impairment, due to such symptoms as gross impairment in thought processes or communication; persistent delusions or hallucinations; grossly inappropriate behavior; persistent danger of hurting self or others; intermittent inability to perform activities of daily living (including maintenance of minimal personal hygiene); disorientation to time or place; memory loss for names of close relatives, own occupation, or own name, will be rated as 100 percent disabling. Under 38 C.F.R. § 4.130, the nomenclature employed in this portion of the rating schedule is based upon the DIAGNOSTIC AND STATISTICAL MANUAL OF MENTAL DISORDERS, Fourth Edition, of the American Psychiatric Association (DSM-IV). As indicated in Carpenter v. Brown, 8 Vet. App. 240, 242 (1995), the GAF is a scale reflecting the psychological, social and occupational functioning on a hypothetical continuum of mental health-illness and a 51-60 rating indicates moderate difficulty in social, occupational or school functioning. The DSM-IV describes a GAF score of 51 to 60 as reflecting a moderate level of impairment, e.g., flattened affect, circumstantial speech, occasional panic attacks, or moderate difficulty in social, occupational or school functioning, e.g., having few friends or having conflicts with peers or co-workers. See 38 C.F.R. § 4.130. See also, Cathell v. Brown, 8 Vet. App. 539 (1996); and Richard v. Brown, 9 Vet. App. 266, 267 (1996), wherein the Court stated that a "GAF of 50 is defined as 'Serious symptoms (e.g., suicidal ideation, severe obsessional rituals, frequent shoplifting) OR any serious impairment in social, occupational, or school functioning (e.g., no friends, unable to keep a job).'" Between March 2006 and August 2009, the appellant's GAF score ranged from 50 to 60. Based on a review of the evidence of record, lay and clinical, the Veteran is not entitled to an initial evaluation in excess of 30 percent. There is no evidence of any suicidal ideation and the appellant was able to work until he retired in 2007, for reasons unrelated to the PTSD disability. There is no evidence that his reported short-term memory loss involves retention of only highly learned material and forgetting to complete tasks. The appellant's symptomatology does not reflect any past or current homicidal ideation; speech intermittently illogical, obscure, or irrelevant; near-continuous panic or depression affecting the ability to function independently, appropriately and effectively; impaired impulse control (such as unprovoked irritability with periods of violence); spatial disorientation; or neglect of personal appearance and hygiene. Moreover, the evidence of record reveals no impairment of the thought process or communication. The appellant has not exhibited any inappropriate behavior, and has been able to maintain his personal hygiene and other activities of daily living. He has never been noted to be other than alert and oriented. While he has had some difficulty in adapting to stressful circumstances and problems maintaining effective relationships, the Board finds that an initial evaluation in excess of 30 percent is not warranted. The evidence of record does not establish that he has demonstrated such symptoms as: circumstantial, circumlocutory, or stereotyped speech; panic attacks more than once a week; difficulty in understanding complex commands; impairment of short- and long-term memory (e.g., retention of only highly learned material, forgetting to complete tasks); impaired judgment; or impaired abstract thinking. While the appellant has evidenced some disturbances of motivation and mood and some difficulty in establishing and maintaining effective work and social relationships, the evidence of record shows that he has maintained his marital relationship over decades, and that he has appeared for medical treatment without any serious psychiatric complaints. The evidence of record does not demonstrate that he exhibited any memory loss that was more than mild, any loss of impulse control or any diminished judgment. In fact, testing for recent and remote recall and for concentration (e.g., serial 7s) on private and VA examination did not reveal any significant deficiencies. The evidence of record did demonstrate that the appellant experienced such symptoms as nightmares, hypervigilance and recurring memories and that he did demonstrate some disturbances of motivation and mood and difficulty in establishing and maintaining effective social relationships. However, as previously noted, when evaluating the level of disability from a mental disorder, an evaluation is not to be assigned solely on the basis of social impairment. 38 C.F.R. § 4.126(b). Furthermore, the report of the VA psychiatric examinations of record and the private psychiatric evaluation report contained no evidence that the Veteran's symptoms were ever so incapacitating as to result in total occupational and social impairment. Nor has the Veteran himself reported such incapacitation. While the evidence does indicate that he has demonstrated some symptoms contemplated by the criteria for a50 percent rating evaluation, such as disturbances of motivation and mood and difficulty in establishing and maintaining social relationships, these symptoms were noted to not affect his job functioning. Moreover, there is no indication the Veteran ever had any suicidal or homicidal ideation. He has never reported any instance of violence towards others, and no instances toward animals. He has never presented with anger or rage during treatment visits. At all times, the Veteran has been found to be oriented in all tested spheres and capable of expressing himself in a coherent and logical manner and he has retained good communication skills. Despite some significant psychiatric symptoms, the Veteran's speech and behavior have essentially been appropriate. In addition, while the appellant has reported social isolation, he has been able to have a good relationship with his longtime wife and to maintain his personal hygiene and other activities of daily living. Therefore an evaluation in excess of 30 percent evaluation is not warranted under the applicable rating criteria. Notwithstanding the above discussion, a rating in excess of the assigned 30 percent schedular evaluation for the Veteran's service-connected PTSD disability may be granted when it is demonstrated that the particular disability presents such an exceptional or unusual disability picture with such related factors as marked interference with employment or frequent periods of hospitalization as to render impractical the application of the regular schedular standards. See 38 C.F.R. § 3.321(b)(1). See Barringer v. Peake, 22 Vet. App. 242 (2008). The Board finds no evidence that the Veteran's service-connected PTSD disability addressed above has presented such an unusual or exceptional disability picture at any time as to require consideration of an extraschedular evaluation pursuant to the provisions of 38 C.F.R. § 3.321(b). The schedular rating criteria are designed to compensate for average impairments in earning capacity resulting from service-connected disability in civil occupations. 38 U.S.C.A. § 1155. "Generally, the degrees of disability specified [in the Rating Schedule] are considered adequate to compensate for considerable loss of working time from exacerbations or illnesses proportionate to the severity of the several grades of disability." 38 C.F.R. § 4.1. The Board finds that there is no evidence that the schedular evaluation in this case (30 percent) is inadequate. As discussed above, there are higher ratings for the Veteran's PTSD disability, but the required manifestations have not been shown in this case. The Board further finds that no evidence has been presented suggesting an exceptional disability picture in this case. The Veteran has not required any hospitalization or extended treatment for his service-connected PTSD disability, and he has not demonstrated marked interference with his capacity for employment due to such disability. There is no objective evidence of any symptoms due to the service-connected PTSD disability that are not contemplated by the pertinent rating criteria. Consequently, the Board concludes that referral of this case for consideration of the assignment of an extraschedular rating is not warranted. See Floyd v. Brown, 8 Vet. App. 88, 96 (1996); Bagwell v. Brown, 9 Vet. App. 337, 338- 339 (1996). (When evaluating an rating claim, it is well established that the Board may affirm an RO's conclusion that a claim does not meet the criteria for submission for an extraschedular rating pursuant to 38 C.F.R. § 3.321(b)(1), or may reach such a conclusion on its own.) Furthermore, although the Veteran experiences occupational impairment, there is no indication in the record that the average industrial impairment from the PTSD disability addressed herein would be in excess of that contemplated by the currently assigned rating. The Court has held that, "if the criteria reasonably describe the claimant's disability level and symptomatology, then the claimant's disability picture is contemplated by the rating schedule, the assigned schedular evaluation is, therefore, adequate, and no referral is required." Thun v. Peake, 22 Vet. App. 111, 115 (2008). In this case, the various symptoms described by the Veteran fit squarely within the criteria found in the relevant diagnostic code for the PTSD disability on appeal. The rating criteria contemplate not only his symptoms but the severity of his PTSD disability. For these reasons, referral for extraschedular consideration is not warranted for the PTSD disability. The Board acknowledges that the Veteran, in advancing this appeal, believes that the PTSD disability has been more severe than the initially assigned disability rating reflects. There are no clinical findings congruent with the next higher (50%) evaluation. Medical evidence is generally required to probatively address questions requiring medical expertise; lay assertions do not constitute competent medical evidence for these purposes. Espiritu v. Derwinski, supra. However, lay assertions may serve to support a claim by supporting the occurrence of lay- observable events or the presence of symptoms of disability subject to lay observation. 38 U.S.C.A. § 1153(a); 38 C.F.R. § 3.303(a); Jandreau v. Nicholson, 492 F.3d 1372 (Fed. Cir. 2007); see Buchanan v. Nicholson, 451 F.3d 1331, 1336 (Fed. Cir. 2006) (addressing lay evidence as potentially competent to support presence of disability even where not corroborated by contemporaneous medical evidence). See also Davidson v. Shinseki, 581 F.3d 1313 (Fed Cir. 2009). Competency of evidence differs from weight and credibility. The former is a legal concept determining whether testimony may be heard and considered by the trier of fact, while the latter is a factual determination going to the probative value of the evidence to be made after the evidence has been admitted. Rucker v. Brown, 10 Vet. App. 67, 74 (1997); Layno v. Brown, 6 Vet. App. 465, 469 (1994); see also Cartright v. Derwinski, 2 Vet. App. 24, 25 (1991) ("although interest may affect the credibility of testimony, it does not affect competency to testify"). In this case, the Veteran is competent to report symptoms because this requires only personal knowledge as it comes to him through his senses. Layno, 6 Vet. App. at 470. In fact, the grant of the 30 percent evaluation is based in large part on the Veteran's reports about his PTSD symptomatology. He is not, however, competent to identify a specific level of disability of his PTSD disability according to the appropriate diagnostic code. See Robinson v. Shinseki, 557 F.3d 1355 (2009). The same analysis holds true for the statements of the Veteran's spouse. Such competent evidence concerning the nature and extent of the PTSD disability has been provided by the medical personnel who have examined the Veteran during the current appeal and who have rendered pertinent opinions in conjunction with the evaluations. The medical findings (as provided in the examination report, treatment plan and therapy notes) directly address the criteria under which psychiatric disabilities are evaluated. The Board has carefully considered the appellant's contentions and arguments; however, the competent medical evidence offering detailed descriptions of the PTSD symptoms and specialized determinations pertinent to the rating criteria are the most probative evidence with regard to evaluating whether an evaluation in excess of 30 percent is warranted. The lay statements have been considered together with the probative medical evidence clinically evaluating the severity of the PTSD- related symptoms. The preponderance of the most probative evidence does not support assignment of any higher rating. The findings needed for the next higher evaluation are not currently demonstrated. Since the preponderance of the evidence is against an allowance of an initial evaluation in excess of 30 percent for PTSD under the schedular criteria, the benefit of the doubt doctrine is inapplicable. 38 U.S.C.A. § 5107(b). See Ortiz v. Principi, 274 F.3d 1361 (Fed. Cir. 2001). In Rice v. Shinseki, 22 Vet. App. 447 (2009), the Court held that a claim for a total disability rating based on individual unemployability due to service-connected disability (TDIU) is part of an increased rating claim when such claim is raised by the record. The Court further held that when evidence of unemployability is submitted at the same time that a veteran is appealing the initial rating assigned for a disability, the claim for TDIU will be considered part and parcel of the claim for benefits for the underlying disability. Id. In this case, the Veteran has not raised the issue of unemployability and he only has a combined disability evaluation of 50 percent. Neither the statements of the Veteran or any third party nor the evidence of record reasonably raises the question of whether the Veteran is unemployable due to his PTSD disability. Therefore a claim for a total rating based on individual unemployability is not part and parcel of the appellant's PTSD increased disability rating claim. Rice v. Shinseki, 22 Vet. App. 447, 453-54 (2009). Finally, based upon the guidance of the Court in Hart v. Mansfield, 21 Vet. App. 505 (2007), the Board has considered whether any staged rating is appropriate for the PTSD disability. As reflected in the decision above, the Board has not found enough variation in the Veteran's symptomatology or clinical findings for the manifestations of the PTSD disability that would warrant the assignment of any staged rating, as the Court has indicated can be done in this type of case. Based upon the record, the Board finds that at no time during the claim/appellate period has the PTSD disability been more than 30 percent. B. Service connection for diabetes mellitus (DM) The Veteran is seeking an award of service connection for diabetes mellitus, which he claims is due to his exposure to herbicide agents in Vietnam. The appellant served in Vietnam during his first period of active service; he was awarded the Distinguished Flying Cross and three Air Medals. As indicated above, he is service-connected for PTSD based on stressors related to his combat service as a pararescue specialist who landed in enemy territory to pick up downed fliers/crewmembers. To establish service connection for a disability, symptoms during service, or within a reasonable time thereafter, must be identifiable as manifestations of a chronic disease or permanent effects of an injury. Further, a present disability must exist and it must be shown that the present disability is the same disease or injury, or the result of disease or injury incurred in or made worse by the Veteran's military service. Rabideau v. Derwinski, 2 Vet. App. 141, 143 (1992); 38 C.F.R. § 3.303(a). See McClain v. Nicholson, 21 Vet. App. 319 (2007), holding that the presence of a chronic disability at any time during the claims process can justify a grant of service connection, even where the most recent diagnosis is negative. Service connection may be granted for a chronic disability resulting from a disease or injury incurred in or aggravated by active service. 38 U.S.C.A. §§ 1110, 1131. Certain listed diseases, including diabetes mellitus, will be considered to have been incurred in service if manifest to a degree of 10 percent or more within one year following the date of separation from service even though there is no evidence of such disease during service. 38 C.F.R. § 3.307. In addition, service connection may be granted for any disease diagnosed after service when all the evidence establishes that the disease was incurred in service. 38 C.F.R. § 3.303(d). The resolution of an issue of service connection must be considered on the basis of the places, types and circumstances of a veteran's service as shown by service records, the official history of each organization in which the claimant served, his medical records and all pertinent medical and lay evidence. Determinations relative to service connection will be based on review of the entire evidence of record. 38 C.F.R. § 3.303(a). In addition, service connection can be presumed if a veteran was exposed to Agent Orange or other herbicide agents during active service. Presumptive service connection is warranted for the following disorders: chloracne or other acneform disease consistent with chloracne; type 2 diabetes; Hodgkin's disease; multiple myeloma; non-Hodgkin's lymphoma; acute and subacute peripheral neuropathy; porphyria cutanea tarda; prostate cancer; respiratory cancers (cancer of the lung, bronchus, larynx, or trachea), and soft-tissue sarcoma (other than osteosarcoma, chondrosarcoma, Kaposi's sarcoma, or mesothelioma). Presumptive service connection for these disorders as a result of herbicide exposure is warranted if the requirements of 38 C.F.R. § 3.307(a)(6) are met. 38 U.S.C.A. § 1116; 38 C.F.R. § 3.309(e). The governing law provides that a "veteran who, during active military, naval, or air service, served in the Republic of Vietnam during the period beginning on January 9, 1962, and ending on May 7, 1975, shall be presumed to have been exposed during such service to an herbicide agent . . . unless there is affirmative evidence to establish that the veteran was not exposed to any such agent during that service." 38 U.S.C.A. § 1116(f). Review of the Veteran's service medical treatment records includes no mention of diabetes mellitus or any problem with elevated blood sugar during his active service. The appellant underwent a service separation medical examination in April 1993; on physical examination, his endocrine system was found to be clinically normal. His fasting blood sugar was 86 mg/dl and his urinalysis testing for glucose was also normal (negative) at that time. Review of the appellant's retired military medical treatment records, dated between 1993 and 2005, indicates that he carried a diagnosis of diabetes as far back as March 2003. Repeated entries dated thereafter list DM as a diagnosis. For example, an October 2004 entry states that the appellant's DM II was diet- controlled. Review of the appellant's private medical records, dated between 2004, indicates that he underwent repeated laboratory testing related to DM. In particular, the evidence of record includes multiple instances of elevated Hemoglobin A1C levels. Review of the appellant's VA medical treatment records, dated between 2006 and 2009, indicates that the appellant was noted to have a diagnosis of DM. For example, there is a March 2006 notation of diet-controlled diabetes. The Veteran underwent a VA medical examination in August 2009. The examining physician reviewed the claims file and noted that the appellant's medical records contained a diagnosis of type 2 diabetes mellitus. The physician, in his February 2010 addendum, stated that the appellant did not have DM based on the results of his August 2009 glucose tolerance testing. However, the examiner did not discuss any of the appellant's prior laboratory results and did not provide any explanation or rationale for concluding that, despite diagnoses of DM in private records, retired military record and VA records, he did not have DM as opposed to having diet-controlled DM. Here, the Board finds that the evidence of record is in relative equipoise as to whether the Veteran has pre-diabetes or type 2 diabetes mellitus. The Board observes that there is conflicting medical evidence in the record as to nature of the appellant's diabetes, specifically whether it is type 1 or type 2. Numerous private and VA reports show clinical impressions of type 1 diabetes mellitus, as well as diagnoses of type 2 diabetes mellitus. Attributes of both type 1 and type 2 diabetes mellitus are found in the appellant's medical history, and there are competent medical opinions on both sides of the question. Where there exists an approximate balance of positive and negative evidence regarding the merits of an issue material to the determination of the matter, the Veteran shall prevail upon the issue. See 38 U.S.C.A. § 5107(b); Gilbert v. Derwinski, supra. Thus, the Board finds that it is at least as likely as not that the appellant has type 2 diabetes mellitus. In addition, the Board notes that there is no affirmative evidence to rebut the presumption that the appellant's type 2 diabetes mellitus is attributable to his service in Vietnam. See 38 C.F.R. § 3.307(a)(6)(iii); 3.307(d). Therefore, the Board finds that service connection for diabetes mellitus is warranted, resolving reasonable doubt in favor of the Veteran. ORDER An initial evaluation in excess of 30 percent for PTSD is denied. Service connection for type 2 diabetes mellitus is granted. REMAND A determination has been made that additional development is necessary with respect to the remaining issues on appeal. Accordingly, further appellate consideration will be deferred and this case is REMANDED to the AMC/RO for action as described below. The Veteran submitted his claim for service connection for hypertension in August 2005. His hypertension claim was denied by the RO on a direct basis and on a secondary basis; the claim was denied on a secondary basis because the RO had denied service connection for DM. However, service connection for type 2 diabetes mellitus has now been granted in the decision above. When a veteran is found not to be entitled to a regulatory presumption of service connection for a given disability, the claim must nevertheless be reviewed to determine whether service connection can be established on a another basis. See Combee v. Brown, 34 F.3d 1039, 1043-1044 (Fed. Cir. 1994). Further development of the medical evidence relating to secondary service connection is necessary, and adjudication on this basis is therefore indicated. Under 38 C.F.R. § 3.310(a), service connection may be established on a secondary basis for a disability which is proximately due to or the result of service-connected disease or injury. Establishing service connection on a secondary basis requires evidence sufficient to show (1) that a current disability exists and (2) that the current disability was either (a) proximately caused by or (b) proximately aggravated by a service-connected disability. See Allen v. Brown, 7 Vet. App. 439, 448 (1995) (en banc). Where a service-connected disability aggravates a non- service-connected condition, a veteran may be compensated for the degree of disability (but only that degree) over and above the degree of disability existing prior to the aggravation. Aggravation will be established by determining the baseline level of severity of the non-service-connected condition and deducting that baseline level, as well as any increase due to the natural progress of the disease, from the current level. 38 C.F.R. § 3.310(b). During the pendency of this claim and appeal, an amendment was made to the provisions of 38 C.F.R. § 3.310. 71 Fed. Reg. 52,744-47 (Sept. 7, 2006). The amendment sets a standard by which a claim based on aggravation of a non-service-connected disability by a service-connected one is judged. Although VA has indicated that the purpose of the regulation was merely to apply the Court's ruling in Allen, supra, it was made clear in the comments to the regulation that the changes were intended to place a burden on the claimant to establish a pre-aggravation baseline level of disability for the non-service-connected disability before an award of secondary service connection may be made. This had not been VA's practice, which suggests that the recent change amounts to a substantive change. The present case predates the regulatory change. Given what appear to be substantive changes, the RO's analysis of secondary service connection in the present appeal should consider the version of 38 C.F.R. § 3.310 in effect before the change, which version is more favorable to the claimant because it does not require the establishment of a baseline before an award of service connection may be made. These considerations require further investigation by medical professionals, inasmuch as the Board is prohibited from substituting its own unsubstantiated medical opinions. See Colvin v. Derwinski, Vet. App. 171, 175 (1991). In addition, the duty to assist includes obtaining medical records and examinations where indicated by the facts and circumstances of an individual case. See Murphy v. Derwinski, 1 Vet. App. 78 (1990). The Court has stated that the Board's task is to make findings based on evidence of record - not to supply missing facts. Beaty v. Brown, 6 Vet. App. 532 (1994). Thus, where the record before the Board is inadequate to render a fully informed decision, a remand to the RO is required in order to fulfill its statutory duty to assist the appellant to develop the facts pertinent to the claim. Ascherl v. Brown, 4 Vet. App. 371, 377 (1993). Therefore, to ensure full compliance with due process requirements, this case is REMANDED to the AMC/RO for the following: 1. Assure that all notification and development action required by 38 U.S.C.A. §§ 5102, 5103, and 5103A, the implementing regulations found at 38 C.F.R. § 3.159 and any other applicable legal precedent has been completed. 2. Contact the appellant to determine the names, addresses, and recent dates of treatment by any physicians, hospitals or treatment centers (private or government) who provided him with relevant evaluation or treatment for his hypertension and for his service-connected DM. After obtaining the appropriate release forms from the appellant, the RO should contact each physician, hospital, or treatment center specified by the appellant to obtain any and all medical or treatment records or reports relevant to the hypertension claim, including all VA treatment, all retired military treatment and all private treatment, to the extent not already on file. In particular, the records from the Northeast Internal Medicine Associates (Dr. Randy Bergman) must be obtained. 3. All items of correspondence, as well as any medical or treatment records obtained, should be made a part of the claims file. If private treatment is reported and those records are not obtained, the appellant and his representative should be provided with information concerning the negative results, and afforded an opportunity to obtain the records. 4. After completing the development actions listed above and any other indicated development, the AMC/RO should arrange for a comprehensive review of the appellant's claims file by an appropriate VA physician, for example, a cardiologist or an endocrinologist, to determine the nature and etiology of the appellant's hypertension. Specifically, the reviewer must address the questions of: (a) what cardiac pathology does the appellant currently have and when was said cardiac pathology initially manifested? In particular, discuss his hypertension (HTN). (b) whether, based on what is medically known about causes or possible causes of cardiac pathology, including HTN, any signs or symptoms noted in service or within one year of service separation (in August 1993) were the first manifestations of the appellant's current HTN? (c) whether, based on what is medically known about causes or possible causes of cardiac pathology, including HTN, any current cardiac pathology was caused by the Veteran's diabetes mellitus as opposed to some other factor or factors, such as dyslipidemia or obesity? (d) whether diabetes mellitus aggravated, contributed to, or accelerated any existing cardiac or cardiovascular pathology, including HTN? and (e) if the appellant's diabetes mellitus aggravated, contributed to, or accelerated any cardiac or cardiovascular pathology, including HTN, to what extent, stated in terms of a percentage, did the DM so contribute as compared to the natural progress of the disease itself or as opposed to other possible contributing factors? In assessing the relative likelihood as to origin and etiology of the hypertension currently present, the reviewer should apply the standard of whether it is at least as likely as not (i.e., to at least a 50/50 degree of probability) that any claimed disorder is causally or etiologically related to the Veteran's service-connected disability or to treatment thereof, or whether such a causal or etiological relationship is unlikely (i.e., less than a 50/50 probability), with the rationale for any such conclusion set out in the report. Note: The term "aggravation" in the above context refers to a permanent worsening of the underlying condition, as contrasted to temporary or intermittent flare-ups of symptomatology which resolve with return to the baseline level of disability. Note: As used above, the term "at least as likely as not" does not mean merely within the realm of medical possibility, but rather that the weight of medical evidence both for and against a conclusion is so evenly divided that it is as medically sound to find in favor of causation as it is to find against it. If any opinion and supporting rationale cannot be provided without invoking processes relating to guesses or judgment based upon mere conjecture, the examiner should clearly and specifically so specify in the report, and explain why this is so. In this regard, if the examiner concludes that there is insufficient information to provide an etiologic opinion without result to mere speculation, the examiner should state whether the inability to provide a definitive opinion was due to a need for further information (with said needed information identified) or because the limits of medical knowledge had been exhausted regarding the etiology of the Veteran's left hip disorder. See Jones v. Shinseki, 23 Vet. App. 382 (2010). 5. Upon receipt of the VA reviewer's report, the AMC/RO should conduct a review to verify that all requested opinions have been provided. If information is deemed lacking, the AMC/RO should refer the report to the VA reviewer for corrections or additions. 6. If any additional development is necessary to re-adjudicate the hypertension issue, especially in light of any newly received records, that development should be done. 7. Thereafter, the AMC/RO should re- adjudicate the appellant's claim for service connection for hypertension. The readjudication should reflect consideration of all the evidence of record and be accomplished with application of all appropriate legal theories, including 38 C.F.R. § 3.310(b); Allen v. Brown, 7 Vet. App. 439 (1995). 8. If the benefit sought on appeal remains denied, the appellant should be provided a supplemental statement of the case (SSOC). The SSOC must contain notice of all relevant actions taken on the claim for benefits, to include a summary of the evidence and applicable law and regulations considered pertinent to the issues currently on appeal. An appropriate period of time should be allowed for response. The appellant has the right to submit additional evidence and argument on the matter the Board has remanded. Kutscherousky v. West, 12 Vet. App. 369 (1999). The appellant is hereby notified that it is the appellant's responsibility to report for any scheduled examination and to cooperate in the development of the case, and that the consequences of failure to report for a VA examination without good cause may include denial of the claim. 38 C.F.R. §§ 3.158 and 3.655. Thereafter, the case should be returned to the Board, if in order. The Board intimates no opinion as to the ultimate outcome of this case. The appellant need take no action until notified. This claim must be afforded expeditious treatment. The law requires that all claims that are remanded by the Board of Veterans' Appeals or by the United States Court of Appeals for Veterans Claims for additional development or other appropriate action must be handled in an expeditious manner. See 38 U.S.C.A. §§ 5109B, 7112 (West Supp. 2009). ___________________________ ANDREW J. MULLEN Veterans Law Judge, Board of Veterans' Appeals Department of Veterans Affairs