UNITED STATES COURT OF APPEALS FOR VETERANS CLAIMS

No. 18-6970

JAMES R. HEALEY, APPELLANT,

V.

DENIS MCDONOUGH,

SECRETARY OF VETERANS AFFAIRS, APPELLEE.

On Appeal from the Board of Veterans' Appeals

(Argued July 23, 2020 Decided February 24, 2021)

Bradley W. Hennings, with whom Maura J. Clancy was on the brief, both of Providence, 

Rhode Island, for the appellant.

Mark J. Hamel, with whom Richard J. Hipolit, Acting General Counsel; Mary Ann Flynn, 

Chief Counsel; and James B. Cowden, Deputy Chief Counsel, were on the brief, all of Washington, 

D.C., for the appellee.

Before ALLEN, MEREDITH, and TOTH, Judges.

TOTH, Judge, filed the opinion of the Court. MEREDITH, Judge, filed an opinion

concurring in the judgment.

TOTH, Judge: The Board reopened but denied Navy veteran James R. Healey's claim for 

service connection for hypertension.1 He appeals, arguing principally that the National Academy 

of Sciences (NAS) report called Veterans and Agent Orange: Update 2012 (2012 Update),

supplied enough evidence of a potential connection between hypertension and herbicide exposure 

to trigger VA's duty to seek a medical nexus opinion on the question. We rejected such an argument 

in Euzebio v. Wilkie, 31 Vet.App. 394, 402 (2019), holding that the 2014 Update2 was not 

constructively before the Board and, therefore, could not be consideredby the Court in determining 

whether the duty to provide an examination had been triggered.

1 The Board remanded the issues of whether Mr. Healey is entitled to benefits for allergic rhinitis, asthma, 

chronic obstructive pulmonary disease, esophageal stricture, and dysphagia, all as secondary to service-connected 

non-Hodgkin’s lymphoma, and a total disability rating based on individual unemployability. The remanded matters

are not before the Court. See Breeden v. Principi, 17 Vet.App. 475, 478 (2004).

2 There, the Update at issue was created by NAS in 2014, released by NAS in 2016 and published in the 

Federal Register in 2016. Any substantive differences between the NAS updates considered in Euzebio and here are 

irrelevant to the current appeal. 
2

Mr. Healey says his situation is different due to the intervening promulgation of the 

Purplebook, a compendium of standard procedures and considerations guiding the Board's 

adjudication of veterans' benefits claims. The Purplebook states that VA is on notice as to the 2012 

Update and its contents and that, in hypertension cases with conceded exposure to herbicides, the 

Board must obtain a medical opinion as to whether the two are linked. The Secretary counters that 

the Board has no duty to discuss the 2012 Update since the Purplebook is not "binding" and that 

this case cannot be distinguished from Euzebio.

We do not believe this case requires us to either apply or distinguish Euzebio; we think

Overton v. Wilkie, 30 Vet.App. 257 (2018), provides a more salient basis to resolve this case. 

There, we held that the Board cannot ignore a relevant provision in VA's Adjudication Procedures 

Manual (M21-1), even though that manual is non-binding on Board members. Instead, the Board 

must, as part of its duty to provide adequate reasons or bases supporting its decision, present a

reasoned, independent determination on how to resolve the issue addressed by the manual 

provision. 

Because the Purplebook provision Mr. Healey cites is relevant to the issue of whether a 

medical nexus opinion was warranted in these circumstances, the Board erred in not addressing it. 

So, irrespective of whether the Purplebook binds the Board, this omission requires that we vacate 

the decision on appeal and remand for further proceedings. We also briefly address Mr. Healey's 

secondary argument at the end of this opinion.

I. BACKGROUND

Mr. Healey served in the Navy from 1965 to 1969, including more than two years in 

Vietnam where he was exposed to herbicides. See 38 U.S.C. § 1116. After leaving active duty, he 

entered the Navy Reserve and served from 1974 to 1995. In 2009, he filed a claim for service 

connection for hypertension, diabetes, and non-Hodgkin's lymphoma (NHL). R. at 2051-64. He 

asserted that NHL and diabetes were caused by his herbicide exposure and that he was diagnosed 

with high blood pressure around 1978, during his Naval Reserve period. R. at 2057.

VA obtained a medical opinion in July 2009. R. at 1743-55. The VA examiner opined that 

the veteran's hypertension was not a "complication" of diabetes, reasoning that there was no 

evidence of diabetic neuropathy, worsening hypertension, or diabetic medication usage. R. at 1749. 
3

The Agency granted Mr. Healey's claims for service connection for diabetes and NHL as

those conditions are presumed to be related to his herbicide exposure. R. at 1709-17. But VA 

denied the hypertension claim, finding that his hypertension began during his Navy Reserve 

service and not active duty. R. at 1716. Mr. Healey did not timely appeal, and the decision became 

final.

In 2014, VA published an NAS biennial "Update" addressing the relationship between 

hypertension and herbicide exposure. Veterans and Agent Orange: Update 2012, 79 Fed. Reg. 

20,308 (Apr. 11, 2014). These Updates are not specific to any particular veteran. NAS instead 

creates them for the Secretary, who considers3the Updates, as well as other "sound medical and 

scientific evidence," and uses them to "prescribe regulations providing that a presumption of 

service connection is warranted" when he determines "that a positive association exists between" 

a disease and herbicide exposure. 38 U.S.C. § 1116(b)(1), (2). 

The 2014 Update concluded that there was a "limited or suggestive" relationship between 

hypertension and herbicide exposure.4 79 Fed. Reg. at 20,310. In response, VA did not add 

hypertension to the list of conditions presumed to be related to herbicide exposure, and it was not 

added to Mr. Healey's claims file.

In August 2015, Mr. Healey sought to reopen his hypertension claim. R. at 1529-35. He 

asserted that he suffered from this condition, along with several others, as a result of his treatment 

for NHL. R. at 1534. He also noted that he qualified as an "in-country" Vietnam veteran. Id.

VA obtained a medical examination shortly thereafter to determine whether the veteran's 

hypertension was related to his NHL treatment. The VA examiner characterized the condition as 

"benign essential" hypertension and opined that it was not related to NHL therapy. R. at 1247. VA 

reopened but denied Mr. Healey's claim, and he appealed. In his Notice of Disagreement, he opined

that his hypertension was secondary to his diabetes mellitus. R. at 1190. The veteran submitted a 

2016 letter from a private physician, who opined that the veteran's hypertension was "directly 

related" to his service-connected diabetes. R. at 1184. 

3 The Secretary was previously required to consider the Updates, but that requirement expired in September 

2015. See 38 U.S.C. § 1116(e).

4 NAS also released Updates, created in 2006, 2008, and 2010, that all found a limited or suggestive 

relationship between hypertension and herbicide exposure. See79 Fed. Reg. at 20,310.
4

Because the veteran submitted new medical records and a private medical opinion, VA 

requested an addendum medical opinion as to whether the new evidence would alter the opinions 

offered by the 2015 examiner. R. at 221. A new opinion was provided in April 2017. The examiner 

stated that, after review of the new documents, her 2015 opinion did not change: the veteran's 

hypertension was not caused or aggravated by treatment for service-connected NHL. R. at 104. 

The examiner reasoned that the veteran's hypertension developed before NHL treatment and 

remained "well controlled and stable" thereafter. R. at 104. She also opined that there was no 

relationship between service-connected diabetes and hypertension. This was so, the examiner 

thought, because his renal function was "normal and . . . without proteinuria" and because

hypertension developed before diabetes and had been well controlled following the diabetes 

diagnosis. R. at 103.

On March 8, 2018, before the decision on appeal was issued, the Board published the

Purplebook—a document that describes itself as "encompass[ing] all Board policies and 

procedures." Appellant's Br., Exhibit A at 2.5(Board of Veterans' Appeals, U.S. Dep't of Veterans 

Affairs, The Purplebook, Version 1.0.0 (March 8, 2018)). Subject to routine updates, it serves as 

"a repository of guidance for all Board employees on the internal operating processes of the Board" 

and is meant to "ensure consistency and accountability in the handling of appeals throughout the 

Board." MEMORANDUM NO. 01-18-04, CHERYL L. MASON, CHAIRMAN, BD. OF VETERANS'

APPEALS at 1 (Mar. 29, 2018) (Mason Memo).

The Purplebook discusses the 2012 Update under a section titled "Adjudicatory Best 

Practices" and a subsection titled "Agent Orange Claims." Appellant's Br., Exhibit A at 3. It states: 

"Although VA has not conceded a relationship between hypertension and Agent Orange," NAS 

concluded that there is "limited or suggestive evidence" of a relationship between hypertension 

and Agent Orange. Id. The document goes on to explain that this means the "'evidence suggests an 

association between exposure to herbicides and the outcome, but a firm conclusion is limited 

because chance, bias, and confounding [factors] could not be ruled out with confidence.'" Id. 

(quoting 79 Fed. Reg. at 20,309). And because a summary of this evolution was published in the 

Federal Register, "VA is on notice as to the information contained therein." Id.

From this, the Purplebook concludes that the suggestive evidence category can "arguably 

be sufficient to establish an 'indication' that the current disability 'may be related' to herbicide 

5 The exhibit's pages have not been numbered, so this citation refers to the second page of the exhibit. 
5

exposure during service, as contemplated by 38 U.S.C. § 5103[A](d)(2)(b)." Id. at 4 (quoting 

McLendon v. Nicholson, 20 Vet.App. 79, 83 (2006)). For these reasons, it advises that VA's Office 

of General Counsel's Litigation Group "will not defend [service connection] hypertension cases 

when a VA nexus opinion has not been obtained." Id. The upshot is that, in "cases where 

presumptive (or actual) exposure to Agent Orange has been conceded," the Board should "not deny 

service connection for hypertension . . . without first obtaining a VA medical opinion on the nexus 

element." Id. at 3.

On October 15, 2018, the Board issued the decision on appeal. R. at 4-16. It did not address 

a theory of direct service connection, including whether Mr. Healey's hypertension was related to

his presumed herbicide exposure or whether the duty to assist required it to obtain a medical 

opinion to adjudicate that theory of entitlement. Rather, the Board found that the veteran's 

hypertension was not caused or aggravated by either service-connected diabetes or treatment for 

service-connected NHL. In reaching this conclusion, the Board found the 2015 and 2017 VA 

medical opinions to be highly probative, "as they represent[ed] the informed conclusions of a 

physician with relevant expertise, [were] based on a review of the claims file, the clinical findings 

made on examination, and the symptomatology reflected in the medical and lay evidence of record, 

and [were] supported by a clear, well-reasoned explanation with citations to the evidence of record 

and references to relevant medical literature." R. at 10-11. 

On appeal, Mr. Healey presents two main arguments, both related to the duty to assist. 

Relying on the 2012 Update, he first argues that the Board erred when it did not address the 

reasonably raised theory that his hypertension may be directly related to his exposure to herbicides.

Although the NAS Update is not in his claims file, Mr. Healey argues that it was in the Board's 

constructive possession due to its inclusion in the Purplebook. In response, the Secretary contends 

that the Board did not have constructive possession of the NAS Update because it has no direct 

relationship to Mr. Healey's claim—a requirement of our constructive possession jurisprudence. 

The Secretary further contends that there is no duty to address any matters raised by the 

Purplebook, as its contents are not binding on the Board.

Second, Mr. Healey challenges the adequacy of the VA medical opinions of record and 

asserts that the rationales provided by the examiners were insufficient. He maintainsthat the Board 

erred when it relied on the 2015 and 2017 VA examination reports to conclude that his 

hypertension was not related on a secondary basis to his service-connected diabetes or NHL. For 
6

his part, the Secretary maintains that the examiner's rationales were adequate for the Board to 

decide the matter of secondary service connection.

II. ANALYSIS

A. Direct Service Connection

The primary issue here is whetherthe duty to assist obligated the Board to obtain a medical 

opinion on a theory of direct service connection between hypertension and in-service herbicide 

exposure that, he says, may have been reasonably raised by the record. The Board must investigate

reasonably raised theories of service connection, and whether a theory is reasonably raised 

generally depends on the evidence that is in the record before the agency. Robinson v. Peake, 

21 Vet.App. 545, 552-53 (2008), aff'd sub nom. Robinson v. Shinseki, 557 F.3d 1355 (Fed. Cir. 

2009). Thus, the Board is not obliged to "assume the impossible task of inventing and rejecting 

every conceivable argument in order to produce a valid decision." Id. at 553. 

Given that the "reasonably raised" standard is highly fact specific, we haven't set forth a 

clear test for when it is met. We have, however, noted a correlation between that standard and the 

threshold for triggering the obligation under the duty to assist to obtain a medical opinion: whether 

evidence "'indicates'" that a disability "'may be associated'" with service. DeLisio v. Shinseki, 

25 Vet.App. 45, 53 (2011) (quoting Robinson, 21 Vet.App. at 553). Simply put, "the duty to sua

sponte investigate whether a primary condition is related to service is only triggered when the 

evidence satisfies the McLendon standard." Id. at 63 (Lance, J., concurring). The Court has 

jurisdiction to determine whether a claim or theory was reasonably raised in the first instance. 

Barringer v. Peake, 22 Vet.App. 242, 244 (2008).

The parties do not focus their arguments on whether the hypertension/herbicide theory was 

reasonably raised. Instead, they primarily dispute whether the duty to obtain a medical opinion 

was triggered here. Given the similarity between the standards, we assume for the sake of argument 

that the theory was reasonably raised and move on to the main event.

The Secretary's duty to assist sometimes requires him to provide a medical examination or 

obtain a medical opinion when adjudicating claims. 38 U.S.C. § 5103A(d). Under McLendon, the 

Secretary must do so when there is: (1) competent evidence of a current disability or persistent or 

recurrent symptoms of a disability; (2) evidence establishing that an event, injury, or disease 

occurred in service; (3) an indication that the disability or persistent or recurrent symptoms of a 
7

disability "may be associated" with the veteran's service or with another service-connected 

disability; and (4) insufficient competent evidence on file for VA to make a decision on the claim. 

20 Vet.App. at 81. The parties' disagreement centers on whether the third element was satisfied. 

Further, this question is rendered slightly more complicated here because the veteran's argument 

relies on extra-record materials—the 2012 Updates discussed in the Purplebook.

In Euzebio, the Court held that the 2014 Update was not constructively before the Board 

because it did not have a "direct relationship" to a veteran's claim. 6 31 Vet.App. at 402. Because

the Update was not constructively before the Board—and not actually part of the claims file—we 

concluded that the appellant could not rely on it to indicate, in McLendon's parlance, a potential

association between hypothyroidism and herbicide exposure. Id. at 402-04, 405. This case presents 

an issue that Euzebio didn't resolve: whether the Purplebook's explicit discussion of the 2012 

Update altered the constructive possession analysis. This issue was not ripe for resolution in 

Euzebio because the Purplebook's promulgation postdated the Board decision in that case and so

fell outside the materials the Court could consider when reviewing a Board decision. Id. at 402 

n.3.

Those chronological complexities are not present here. Therefore, we are presented with 

the question of whether the Board was obliged to consider the Purplebook and its discussion of 

the NAS Update in the context of hypertension claims. The Purplebook is the Board's internal 

manual and is designed to provide members and their staff with a uniform and comprehensive set

of considerations for adjudicating appeals. Mason Memo at 1. In this respect, it generally serves 

the same function that the M21-1 does for adjudicators at VA regional offices. See Nat'l Org. of 

Veterans' Advocates (NOVA) v. Sec'y of Veterans Affairs, 981 F.3d 1360, 1376 (Fed. Cir. 2020)

(noting that the M21 is a consolidation of VA's policies and procedures that provides guidance to 

VA employees and stakeholders). To that end, the Purplebook contains "the Board's internal 

policies and procedures," serves as "a repository of guidance for all Board employees," and is 

meant to "ensure consistency and accountability in the handling of appeals throughout the Board." 

Mason Memo at 1. It is even organized around the same numbering system as the M21-1, "to allow 

for consistency in citation format." Appellant's Br., Exhibit A at 2. 

6 Mr. Euzebio appealed our decision to the Federal Circuit (under docket number 20-1072), and oral 

argument occurred on November 6, 2020. 
8

As an internal guidance manual, the Purplebook's provisions lack the force of law and are 

not substantively binding, as the Board is only bound "by the regulations of the Department, 

instructions of the Secretary, and the precedent opinions of the chief legal officer of the 

Department." 38 U.S.C. § 7104(c); see 38 C.F.R. § 20.105 (2020) ("The Board is not bound by 

Department manuals, circulars, or similar administrative issues."). However, its non-binding 

nature does not render it devoid of legal significance. In DAV, the Federal Circuit identified the 

publication of a guidance manual as "agency action" insofar as the provisions constituted 

"interpretations adopted by the agency, not published in the Federal Register, not binding on the 

Board itself, and contained within [at least something akin to] an administrative staff manual." 

Disabled American Veterans (DAV) v. Sec'y of Veterans Affairs, 859 F.3d 1072, 1074, 1077-78 

(Fed. Cir. 2017). Notwithstanding its non-binding nature, an agency cannot simply ignore an 

internal guidance manual when its contents relate to a particular claim or disability. "A veteran 

adversely affected by a[n] M21-1 Manual provision can contest the validity of that provision as 

applied to the facts of his case . . . ." Id. at 1078.

Overton sought to resolve the uncertainty surrounding the Board's adjudicatory obligations 

in relation to the M21-1. Although the M21-1's provisions were not binding on the Board, the 

Board member in Overton relied on the provisions as substantive rules—namely provisions that 

excluded naval service on a particular Vietnam waterway from the presumption of herbicide 

exposure. On this basis, the Board denied service connection. 30 Vet.App. at 259. We recognized 

that the Board had no duty to apply non-binding M21-1 provisions, id. at 263-64, but observed 

that independence also meant that the Board could not simply cite the M21-1 as providing the rule 

of decision. "[B]ecause the M21-1 is not binding on the Board, the Board's citation to a manual 

provision as the only support for a conclusion . . . is inconsistent with the Board's congressionally 

mandated obligation to provide an adequate statement of reasons or bases for its decisions." Id. at 

264.

Overton recognized that the adoption of a procedure or consideration in a comprehensive 

guidance manual, even if it is not binding as a matter of substance, amounts to a tacit 

acknowledgment by the agency that such consideration or procedure is relevant to an adjudication

that implicates it. We resolved the tension by noting that, as a relevant factor, the Board couldn't 

ignore the M21-1 provision, but must conduct an independent review of the underlying 

consideration addressed by the provision. Id. Overton thus refocused the relevant inquiry from 
9

whether the Board was allowed or obligated to apply a relevant provision to whether it provided a 

"reasoned explanation" for its decision either to apply or disregard such provision in light of the 

particular context of the case. "In other words, the Board is required to discuss any relevant 

provisions contained in the M21-1 as part of its duty to provide adequate reasons or bases, but 

because it is not bound by those provisions, it must make its own determination before it chooses 

to rely on an M21-1 provision as a factor to support its decision." Id.

At this point, we acknowledge the difference between the cases. Despite declaring itself 

not bound by the M21-1, the Board in Overton resolved the case against the veteran by treating an

unfavorable M21-1 provision as dispositive and offered no rationale for its decision beyond citing

to the provision itself. Conversely, the Board in this case ignored a potentially favorable provision

in the Purplebook. Thus, in Overton, the Board acted as though it were bound by a manual that 

doesn't apply to it; here, the Board declined to consider a manual that does apply to it. But this 

difference shouldn't obscure the fact that the fundamental error committed by the Board in both 

cases is the same: it failed to consider adequately and address relevant guidance promulgated for 

the purpose of facilitating the efficient and proper resolution of claims.

Whether a manual is binding or non-binding—and, recall, the Secretary maintains that the 

Purplebook is not binding on the Board—is not the critical consideration. As the Federal Circuit 

noted in DAV, "administrative staff manuals and instructions . . . that affect a member of the public" 

constitute "agency actions." DAV, 859 F.3d at 1075 (citing 5 U.S.C. § 552(a)(2)); see also NOVA, 

981 F.3d at 1374. Like the M21-1, the Purplebook can be deemed analogous to "agency action" 

insofar as it constitutes interpretations adopted by the agency, notwithstanding the lack of binding 

effect. DAV, 859 F.3d at 1075–76. As was the M21-1 for frontline adjudications, the Purplebook

was designed to assist Board members and to provide a comprehensive source account of various 

considerations and procedures that may be relevant to an individual claim or disability. Regardless 

of whether the Purplebook is binding, the Board's public adoption of it as the repository of its 

"internal guidelines and procedures," Mason Memo at 1, brings it within Overton's rationale.

Since it's appropriate to require the Board to acknowledge its own guidance on a matter 

falling squarely within its domain, it's likewise proper to regard the inclusion of the NAS Updates 

in the Purplebook as the agency's recognition of their relevance in cases where there is evidence 

of hypertension and VA has conceded Agent Orange exposure. This squares with a longstanding 

practice of requiring an agency to follow its own internal guidance and policies even when they 
10

impose obligations beyond those imposed by binding legal authorities. See, e.g., Morton v. Ruiz, 

415 U.S. 199, 235 (1974) ("[I]t is incumbent upon agencies to follow their own procedures. This 

is so even where the internal procedures are possibly more rigorous than otherwise would be 

required."); cf. Voge v. United States, 844 F.2d 776, 779 (Fed. Cir. 1988) ("[G]overnment officials 

must follow their own regulations, even if they were not compelled to have them at all."). As the 

Federal Circuit put this maxim in a nonprecedential decision: "Even when an agency's rules lack 

the force of law, it may still be compelled to follow them." Hudick v. Wilkie, 755 F. App'x 998, 

1006 (Fed. Cir. 2018).

In short, where a provision of the Purplebook is relevant to a veteran's appeal, the Board 

must incorporate a discussion of the relevant provision into its analysis. And even as the Board 

remains free to determine whether or how to apply such provision, it must provide a reasoned basis 

for departing from the guidance offered by the provision. 

Here, the Purplebook provision cited by Mr. Healey is relevant to his claim for service 

connection for hypertension, given that the Board acknowledged that he suffers from that condition 

and the record contains evidence that VA has conceded herbicide exposure.It instructsthat, "where 

presumptive (or actual) exposure to Agent Orange has been conceded," the Board should "not deny 

service connection for hypertension . . . without first obtaining a VA medical opinion on the nexus 

element." Appellant's Br., Exhibit A at 3. Yet, the Board denied service connection for 

hypertension without obtaining a medical opinion and without acknowledging this passage. 

The Secretary defends the Board's lack of discussion by asserting that the provisions were 

not relevant as this was not a claim for direct service connection. Put differently, he didn't file an

"Agent Orange claim"—the title of the PurpleBook provision at issue here. However, the Court 

finds no merit in this defense. Although Mr. Healey's current claim is based on the theory of 

secondary service connection, his 2009 hypertension claim was adjudicated under a theory of 

direct service connection. Notably, his 2009 claim included his first allegations that he was 

exposed to herbicides or had "[Agent Orange] diseases." R. at 2057. The Board must consider all 

relevant evidence of record in deciding a claim, which would include the veteran's 2009 claim

asserting that his hypertension was related to his exposure. And, "even if a claimant believes that 

his condition is related to service in a particular way, his claim is not limited solely to one theory 

of service connection." DeLisio v. Shinseki, 25 Vet.App. 45, 53 (2011). 
11

Because the record reasonably raised a theory of direct service connection and the Board 

did not address the relevant Purplebook provisions, it offered inadequate reasons or bases to 

support its denial and its obligation to ensure that all appropriate development had taken place. In 

addressing the Purplebook on remand, the Board should address whether the evidence before it 

indicates a relationship between hypertension and herbicides such that a VA medical opinion on 

the question is warranted.

B. Secondary Service Connection

Secondary service connection is appropriate when a service-connected condition either 

causes disability or aggravates a preexisting disability. 38 C.F.R. § 3.310(a), (b) (2020). The same 

is true when the causal or aggravative agent is the treatment for a service-connected condition. 

See, e.g., Wanner v. Principi, 17 Vet.App. 4, 8 (2003) (noting award of secondary service 

connection for tinnitus caused by medication used to treat service-connected tuberculosis), rev'd 

on other grounds, 370 F.3d 1124 (Fed. Cir. 2004). When VA instructs an examiner to provide an 

opinion as to secondary service connection, that examiner must separately address the causation 

and aggravation prongs of secondary service connection. El-Amin v. Shinseki, 26 Vet.App. 136, 

140-41 (2013). "[A]ggravation of a condition by a service-connected disability is independent of 

direct causation." Atencio v. O'Rourke, 30 Vet.App. 74, 91 (2018). In addition to his direct serviceconnection argument, Mr. Healey contends that the medical opinions the Board relied on did not 

adequately address whether diabetes, NHL, or NHL treatment caused or aggrav ated his 

hypertension.

Here, the Board noted that the VA examiner, in 2015, opined that hypertension was not 

proximately due to diabetes or treatment for NHL and, in 2017, opined that the veteran's 

hypertension was "well-controlled" and thus could not have been caused or aggravated by diabetes 

or NHL treatment. R. at 10; seeR. at 103-04, 1247. The veteran argues that the examination reports 

are inadequate, in part, because the examiner relied on an inaccurate factual premise in opining 

that his hypertension was "well-controlled," citing evidence regarding the treatment history of his 

hypertension. Appellant's Br. at 21, 27. In response, the Secretary argues that "[w]ell-controlled 

does not mean 'unmedicated.'" Secretary's Br. at 11;see id. at 17. 

In reviewing the Board decision and the parties' interpretations of the exams, the Court is 

unable to discern why the Board relied on these two opinions. Specifically, it is not apparent why 

the Board adopted the VA examiner's findings without explaining whether it is factually accurate 
12

that the veteran's hypertension was "well-controlled" and why that meant that there was no increase 

in Mr. Healey's hypertension due to diabetes or NHL treatment. Because the Court is unable to 

understand how the Board evaluated the meaning of "well-controlled" and how the medical 

opinion using that term supported its finding that service connection was not warranted, review is 

frustrated. Therefore, the Court remands so the Board can provide an adequate statement of reasons 

or bases for its reliance on these two medical opinions.

IV. CONCLUSION

After review of the parties' briefs, the record, and the relevant law, the Court VACATES 

the October 15, 2018, Board decision and REMANDS this matter for readjudication consistent 

with this opinion.

MEREDITH, Judge, concurring in the result: Although I agree that remand is warranted, I 

cannot join in the majority's analysis because it is based on an inaccurate factual premise and does 

not provide clear guidance on the issue it purports to resolve. 

Here, the appellant in 2009 filed a claim for service connection for hypertension, 

contending that he had been diagnosed with that condition in 1978 while serving in the Naval 

Reserve. Record (R.) at 2057, 2059-60. In the same application form, the veteran requested 

benefits for diabetes and non-Hodgkin's lymphoma (NHL), asserting that those conditions were 

"due to [his] exposure to Agent Orange" during his active service in Vietnam from 1966 to 1969. 

R. at 2060; see R. at 2057 (asserting that he has "A[gent] O[range] diseases of [NHL] and type II 

diabetes"). A VA regional office (RO) subsequently granted benefits for diabetes and NHL but 

denied service connection for hypertension because it arose during a period of Reserve service 

rather than active duty service. R. at 1716; see R. at 1703-19. 

In August 2015, the veteran then submitted a claim for "hypertension secondary to NHL 

treatment," R. at 1530 (emphasis added), asserting in part that he "suffer[s] from a number of 

medical conditions as a result of [his service-connected] NHL treatments [including] 

chemotherapy and radiation therapy[]," R. at 1534. In the decision on appeal, the Board of 

Veterans' Appeals (Board) noted that "[t]he [appellant] contends that his hypertension is related to 

his service-connected diabetes mellitus or [NHL]" and, accordingly, addressed service connection 

for hypertension only on a secondary basis. R. at 9; see R. at 5-6, 8-11. On appeal, the appellant 
13

now contends that the Board erred in failing to obtain a medical opinion addressing whether his 

hypertension is related to in-service herbicide exposure. Appellant's Brief (Br.) at 8-20.

Because the Board did not address at all whether the appellant was exposed to herbicides 

or whether his hypertension was due to such exposure, the preliminary question is whether the 

Board had an obligation to address that theory of entitlement. See Robinson v. Peake, 21 Vet.App. 

545, 553 (2008), aff'd sub nom. Robinson v. Shinseki, 557 F.3d 1355 (Fed. Cir. 2009). The majority 

concludes that it did because "the record reasonably raised" that theory. Ante at 10. In that regard, 

the majority reasons that "[t]he Board must consider all relevant evidence of record in deciding a 

claim, which would include the veteran's 2009 claim asserting that his hypertension was related to 

his exposure."7 Ante at 10. This conclusion is problematic for several reasons.

First, as noted above, the 2009 claim on its face contains no such allegation. Rather, the 

appellant twice specifically asserted that NHL and diabetes were the disabilities he believed were 

related to herbicide exposure. See R. at 2057, 2060. As for hypertension, he alleged that it arose 

during his Reserve service in the late 1970s and the RO subsequently addressed only that 

contention. R. at 2057, 2059-60. Simply put, the record does not reflect that the appellant attributed 

his hypertension to herbicide exposure and, notably, in his briefs to the Court he does not aver that 

he did. See Appellant's Br. at 3, 18-19; Reply Br. at 6.

Second, the pivotal question in this case is whether the Board should have discussed a 

Purplebook provision outlining the possible relationship between hypertension—the appellant's 

claimed condition—and in-service herbicide exposure. Based on its finding that the appellant 

explicitly alleged, in a prior claim stream, that his condition was due to such exposure, the majority 

concludes that the Purplebook provision was relevant and should have been discussed. Ante at 10. 

In so doing, the majority does not clearly resolve whether the Board may disregard its own internal 

guidance where, as here, the veteran does not explicitly contend before the Agency that 

hypertension is due to herbicide exposure;

8 nor does it resolve whether the Board generally is 

"obliged to consider the Purplebook . . . in the context of hypertension claims," ante at 7.

7 The majority first suggests that they need not address whether the issue was reasonably raised, ante at 6, 

but then explicitly concludes that it was, anteat 10.

8 As discussed below, I would conclude that the Board was obligated to address an obvious potential path to 

benefits not raised below by the appellant. 
14

Third, the majority's conclusion may cause confusion as to when an issue will be 

considered reasonably raised. In that regard, the majority initially notes that "'the duty to sua sponte 

investigate whether a primary condition is related to service is only triggered when the evidence 

satisfies the McLendon[9]standard,'" ante at 6 (quoting DeLisio v. Shinseki, 25 Vet.App. 45, 63 

(2011) (Lance, J., concurring)), but then never addresses whether or how that standard was 

satisfied here, see ante at 6-10.10 Rather, the majority determines without analysis that, because 

the theory of entitlement was purportedly expressly raised in a prior claim stream, it was 

reasonably raised in the current claim stream (which the appellant concedes was explicitly based 

only on secondary service connection, see Appellant's Br. at 18). Although I agree that the Board 

should have addressed possible herbicide exposure under the circumstances of this case, I question 

whether the majority's holding would require VA to address every theory of entitlement previously 

asserted, regardless of the evidence and argument before it in a current claim stream. If so, how 

would that square with Robinson's caution that "the Board is not required sua sponte to raise and 

reject 'all possible' theories of entitlement in order to render a valid opin ion"? Robinson, 

21 Vet.App. at 553.

I further depart from the majority to the extent that they frame the issue on appeal as 

whether "a medical nexus opinion was warranted" as to any possible connection between 

hypertension and herbicide exposure. Ante at 2; see ante at 6, 10. As noted above, the Board's 

decision was limited to addressing a theory of secondary service connection and did not address 

whether service connection was warranted based on such exposure or make any duty to assist 

findings as to that theory of entitlement. Accordingly, whether the Board should have obtained or 

discussed the need to obtain a medical examination is not before the Court at this time and it is 

premature for the majority to opine on it. See Teva Pharm. USA, Inc. v. Novartis Pharm. Corp., 

482 F.3d 1330, 1337-38 (Fed. Cir. 2007) ("Under [the prohibition against advisory opinions] 

doctrine, federal courts are to decide only 'actual controversies by judgment which can be carried 

into effect, and not to give opinions upon moot questions or abstract propositions, or to declare 

principles or rules of law which cannot affect the matter in the case before it.'" (quoting Local No. 

9 McLendon v. Nicholson, 20 Vet.App. 79, 81 (2006).

10 Indeed, by directing the Board on remand to "address whether the evidence before it indicates a relationship 

between hypertension and herbicides," ante at 10-11 (emphasis added), the majority appears to suggest that the third 

prong of the McLendon test—whether there is an indication that the disability may be associated with service—has 

not been satisfied. McLendon, 20 Vet.App. at 81.
15

8-6, Oil, Chem. & Atomic Workers Int'l Union v. Missouri, 361 U.S. 363, 367 (1960))); Norvell 

v. Peake, 22 Vet.App. 194, 200 (2008).

Finally, in concluding that the Board should have considered the Purplebook, the majority 

does not adequately take into account the U.S. Court of Appeals for the Federal Circuit's (Federal 

Circuit) opinion in National Organization of Veterans' Advocates, Inc. (NOVA) v. Secretary of 

Veterans Affairs, 981 F.3d 1360, 1365 (Fed. Cir. 2020). In that regard, the majority stresses that 

the Purplebook is not binding and lacks the force of law because it is a source of internal guidance. 

Ante at 7. But, the Federal Circuit in NOVA found that a similar source of internal guidance, the 

VA Adjudication Procedures Manual, was binding on certain VA adjudicators, was essentially 

substantive in nature, and should have been published in the Federal Register. NOVA, 981 F.3d at 

1374-82. At a minimum, the Court should acknowledge that it may no longer be a foregone 

conclusion that internal manuals lack the force of law.

Having said all that, I agree for different reasons that remand is warranted for the Board to 

discuss the Purplebook. Put simply, the unrepresented appellant, by explicitly requesting service 

connection for hypertension on a secondary basis, should not be considered to have limited the 

scope of his 2015 claim. See Appellant's Br. at 18-19. Rather, in the context of VA's uniquely 

pro-claimant and nonadversarial claims system, the Board cannot ignore an obvious potential path 

to benefits when carrying out its duty to sympathetically read a claim and to investigate possible 

causes that may be unknown to the veteran. See Robinson, 21 Vet.App. at 553 ("As a 

nonadversarial adjudicator, the Board's obligation to analyze claims goes beyond the arguments 

explicitly made."); see also DeLisio, 25 Vet.App. at 53 ("[E]ven if a claimant believes that his 

condition is related to service in a particular way, his claim is not limited solely to one theory of 

service connection."); Clemons v. Shinseki, 23 Vet.App. 1, 5 (2009) (per curiam order) (finding 

that, "[a]s a self-represented layperson at the time his claim was filed, the appellant had neither the 

legal or medical knowledge to narrow the universe of his claim or his current condition"). "Overall, 

the scope of the claim will be based on a sympathetic assessment of 'the claimant's description of 

the claim; the symptoms the claimant describes; and the information the claimant submits or that 

the Secretary obtains in support of the claim,' i.e., the information gathered upon investigation." 

DeLisio, 25 Vet.App. at 53 (quoting Clemons, 23 Vet.App. at 5). 

Given the evidence of record reflecting that VA granted service connection for other 

conditions on the basis of presumed herbicide exposure, the Board should at a minimum 
16

acknowledge its own internal guidance (whether binding or not) that the condition for which the 

appellant now seeks service connection could possibly be related to herbicide exposure. In my 

view, this would "not require the Board to assume the impossible task of inventing and rejecting 

every conceivable argument," Robinson, 21 Vet.App. at 553, or impose an onerous burden. Indeed, 

it may be that under some circumstances the Board would not need to address that theory of 

entitlement on the merits,11 but VA cannot simply ignore an obvious potential path to benefits that 

its own guidance acknowledges exists. After all, how could this theory of entitlement not be 

"reasonably apparent" to the Board, the entity that drafted the Purplebook provision detailing this 

exact theory? DeLisio, 25 Vet.App. at 53 ("[U]pon the filing of a claim for benefits, the Secretary 

generally must investigate the reasonably apparent and potential causes of the veteran's condition 

and theories of service connection that are reasonably raised by the record or raised by a 

sympathetic reading of the claimant's filing." (emphasis added) (citing Schroeder v. West, 212 F.3d 

1265, 1271 (Fed. Cir. 2000))).

For these reasons, I agree with the result in this case but do not join in the majority's reasons 

for reaching that conclusion. 

11 A merits adjudication may not be necessary if, for example, the appellant had expressly abandoned that 

theory of entitlement or if VA had fully adjudicated that theory of entitlement in a different claim stream.