Lawrence M. Tropf v. R. James Nicholson , 20 Vet. App. 317 ( 2006 )


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  •            UNITED STATES COURT OF APPEALS FOR VETERANS CLAIMS
    NO . 03-1923
    LAWRENCE M. TROPF , APPELLANT ,
    V.
    R. JAMES NICHOLSON ,
    SECRETARY OF VETERANS AFFAIRS, APPELLEE.
    On Appeal from the Board of Veterans' Appeals
    (Decided     August 24, 2006       )
    James W. Stewart (non-attorney practitioner), Barton F. Stichman, and Nancy L. Foti, all of
    Washington, D.C., were on the brief for the appellant.
    Tim S. McClain, General Counsel; R. Randall Campbell, Assistant General Counsel; and
    Richard Mayerick, all of Washington, D.C., were on the brief for the appellee.
    Before GREENE, Chief Judge, and LANCE and SCHOELEN, Judges.
    LANCE, Judge: The appellant, veteran Lawrence M. Tropf, appeals, through counsel, that
    part of a July 1, 2003, decision of the Board of Veterans' Appeals (Board) that denied an increased
    disability rating for residuals of a shell fragment wound (SFW) of the back including Muscle Group
    (MG) XX; a compensable disability rating for an SFW of the right upper arm including MG III; and
    a compensable disability rating for residuals of a healed fracture of the distal end of the right fibula.
    Record (R.) at 1-15.      The appellant makes no argument regarding the Board's denial of a
    compensable disability rating for the service-connected residuals of a healed fracture of the distal
    end of the right fibula. Accordingly, any issues on appeal concerning this claim are abandoned. See
    Ford v. Gober, 
    10 Vet.App. 531
    , 535 (1997) (claims not argued on appeal are deemed abandoned);
    Bucklinger v. Brown, 
    5 Vet.App. 435
    , 436 (1993). For the reasons that follow, the Court will affirm
    the Board decision in part, vacate it in part, and remand one matter for further proceedings consistent
    with this opinion.
    I. FACTS
    The appellant served on active duty in the U.S. Army from April 1966 to May 1970. R. at
    17. During his service, he sustained SFWs in combat in Vietnam. 
    Id.
     There are no definitive
    service medical records indicating whether his injured muscles retain shell fragments.
    In May 1970, the appellant filed a claim for disability compensation for residuals of a
    shrapnel injury to the right side of his back. R. at 46-47. In July 1970, a VA regional office (RO)
    granted service connection for an SFW to the back with retained metallic fragments and assigned
    a 10% disability rating under 
    38 C.F.R. § 4.118
    , Diagnostic Code (DC) 7804 (2006) (disability
    caused by scar). R. at 56. During a VA examination in June 1975, an x-ray showed small metallic
    fragments in the "soft tissues" of the back to the right of the midline. R. at 61. In a June 1975 rating
    decision, the RO continued the 10% disability rating for the appellant's scar. R. at 64. A January
    1983 rating decision confirmed the 10% disability rating for a tender scar under DC 7804. R. at 66.
    The claims here on appeal began in September 2001. At that time, the appellant sought an
    increased rating for residuals of the SFW of the back and sought service connection for residuals of
    an SFW of the right upper arm. R. at 68. At a December 2001 VA examination, the physical
    examination of the appellant's right flank revealed a barely visible scar that was "mildly tender on
    palpation." R. at 82. X-rays of his thoracic spine showed the presence of at least three small metallic
    foreign bodies within the "soft tissues" of the right lower thoracic back area. R. at 86-87.
    Examination of the right shoulder revealed no visible scar or evidence of residual shrapnel. There
    was no muscle loss, tissue loss, or muscle atrophy. R. at 82. X-rays revealed several small metallic
    fragments in the soft tissues surrounding the right humerus. R. at 83; Supplemental R. at 1.
    In February 2002, the Pittsburgh, Pennsylvania, RO granted the appellant service connection
    for an SFW of the right upper arm and assigned a 0% disability rating under 
    38 C.F.R. § 4.73
    , DC
    5303 (2006) for MG III. R. at 94-99. The RO denied an increased rating for the SFW of the back
    with retained metallic fragments. R. at 96-99. That decision indicated that the appellant's previous
    10% disability rating for this condition was assigned under DC "7804-5320" (the DC for scars and
    the DC for muscle injury, respectively). R. at 99. The appellant appealed to the Board. R. at 101.
    On July 1, 2003, the Board issued the decision here on appeal. As to the residuals of the
    SFW to the appellant's back, the Board concluded that the DC 5320 criteria for a 20% disability
    2
    rating were not met. R. at 9-12. As to the residuals of the SFW to the appellant's arm, the Board
    found that the appellant's current level of disability was not compensable. R. at 12.
    On April 4, 2006, the Court issued an opinion in this case, affirming the July 1, 2003, Board
    decision in part and vacating and remanding one matter for readjudication. Tropf v. Nicholson,
    
    20 Vet.App. 45
     (2006). On May 15, 2006 the Secretary filed a motion for panel reconsideration and
    for a full-Court decision should panel reconsideration be denied. The Secretary's motion did not seek
    a change in the outcome of the case but only the elimination of one holding that he asserted was
    unnecessary to the conclusion reached by the Court. Today, the Court will grant the Secretary's
    motion for reconsideration, withdraw its prior opinion, and issue this opinion in its stead.
    II. THE PARTIES' ARGUMENTS
    The appellant argues for reversal of the Board's decision on his disability ratings for the
    residuals of his arm and back injuries. First, he argues that the Board erred as a matter of law in
    failing to assign a separate disability rating of at least 10% for a "moderate" injury to his back under
    DC 5320, in addition to the 10% disability rating for a painful scar granted under DC 7804.
    Appellant's Brief (Br.) at 12-15. He asserts that the RO's use of a hyphenated DC to assign a single
    10% disability rating for two separate residuals was not authorized by law and that he is entitled to
    two separate 10% disability ratings. 
    Id.
    The appellant also argues that the Board erred as a matter of law by failing to assign a 20%
    rating under 
    38 C.F.R. § 4.56
     (2006), DC 5303, for a moderate injury of his arm. Appellant's Br. at
    15-18. He asserts that, because his arm injury has retained metallic fragments, he is entitled to a
    20% disability rating for a "moderate" muscle injury, rather than the 0% assigned for a "slight"
    injury. Appellant's Br. at 16-18. He also argues that the Board is required to assign like evaluations
    for like injuries and that the Due Process Clause of the Fifth Amendment requires the Board to treat
    the injury to his arm similarly to the injury to his back. Appellant's Br. at 15-16.
    In his brief, the Secretary does not defend the use of the hyphenated DC to rate the appellant's
    back injury. Secretary's Br. at 5. However, he asserts that the matter should be remanded because
    it is not clear that the Board made the necessary factual findings. Secretary's Br. at 5-6. Regarding
    the appellant's arm injury, he maintains that a remand is also necessary because there has been no
    3
    clear finding of fact that the fragments–which have been described by the medical reports as located
    in the "soft tissue"–are in the muscle as purportedly required under the applicable regulations.
    Secretary's Br. at 6-7.
    In his reply brief, the appellant argues that the Board made the factual findings necessary to
    enable the Court to reverse the Board's decision on his back injury and that 
    38 C.F.R. § 4.56
    (d) does
    not explicitly require the fragments to be retained in the muscle tissue of his arm. Appellant's Reply
    Br. at 5-6.
    III. ANALYSIS
    A. Standard of Review
    Both of the appellant's arguments on appeal require us to review the Board's interpretation
    of regulations implementing title 38 regarding those claims considered by the Board. We review the
    interpretation of regulations de novo. Hatch v. Principi, 
    18 Vet.App. 527
    , 531 (2004). On review,
    if the meaning of the regulation is clear from its language, then that is "the end of the matter."
    Brown v. Gardner, 
    513 U.S. 115
    , 120 (1994).
    B. 
    38 C.F.R. § 4.27
     and the Appellant's Back Injury
    Although the Secretary contests only the remedy, a brief discussion of the applicable
    regulation is warranted because the Court has never analyzed the portion of 
    38 C.F.R. § 4.27
     (2006)
    quoted below. As to the appellant's back injury, VA's use of hyphenated ratings is directed in
    
    38 C.F.R. § 4.27
    , which reads in pertinent part:
    With diseases, preference is to be given to the number assigned to the disease
    itself; if the rating is determined on the basis of residual conditions, the
    number appropriate to the residual condition will be added, preceded by a
    hyphen. Thus, rheumatoid (atrophic) arthritis rated as ankylosis of the
    lumbar spine should be coded "5002-5289." In this way, the exact source of
    each rating can be easily identified.
    (emphasis added).
    On its face, the clear purpose of a hyphenated rating is to add information to help describe
    the origins of a single disability when the disability is not one listed under the explicit DC for the
    given condition. Contrary to the plain language of the statute and the unsupported interpretation and
    application by the Board (R. at 9), the use of the hyphenated rating in this case was not strictly
    4
    informational in that the MG XX injury was not an unusual residual of the scarring but rather a
    separate disability. In this regard, this Court has held that if an injury or disease manifests with two
    different disabilities, then two separate ratings should be awarded. Smith v. Nicholson, 
    19 Vet.App. 63
    , 75 (2005); Esteban v. Brown, 
    6 Vet.App. 259
    , 261 (1994). Hence, the hyphenated rating was
    improper here because it was used in violation of precedent that requires two different disabling
    conditions (a scar and a muscle injury) to be rated separately.1 See 
    38 C.F.R. § 4.27
    .
    1
    Upon the Secretary's motion for reconsideration, the Court has removed from this revised opinion its holding
    that hyphenated ratings are not permitted for injuries under 
    38 C.F.R. § 4.27
    . The Court agrees with the Secretary that
    the holding was not necessary. However, the Secretary should not cite our opinion here as evidence of the Court's
    agreement with any of his substantive argument on this point should the issue be squarely presented to it in the future.
    It is true that the Court is obligated to defer to the Secretary's interpretation of his own regulation when it is ambiguous.
    See Smith v. Nicholson, 
    451 F.3d 1344
    , 1350 (Fed. Cir. 2006). However, a regulation is not ambiguous merely because
    the Secretary takes a litigation position that contradicts the plain language of the regulation. Rather, a statute is
    ambiguous only when the application of the ordinary meaning of words and rules of construction to the plain language
    of the regulation fails to answer the question at issue. See, e.g., Bell Atl. Tel. Cos. v. FCC, 
    131 F.3d 1044
    , 1047 (D.C.
    Cir. 1997) (ambiguity is a conclusion reached when the question presented is not answered "at the level of literal
    language"). In this case, the Secretary asserts that the meaning of the regulation is clear because the sentence prior to
    the one at issue refers to both "diseases and injuries." However, the Secretary offers no support for his assertion that the
    subject of this prior sentence should be grafted onto the sentence at issue, which explicitly refers to "diseases" only.
    Numerous authorities state that when a statute or regulation omits a term in one place that is used in other places, that
    omission should be regarded as intentional and given effect. See Savage v. Gober, 
    10 Vet.App. 488
    , 496 (1997) (citing
    Russello v. United States, 
    464 U.S. 16
    , 23 (1983) ("'[W here] Congress includes particular language in one section of a
    statute but omits it in another section of the same Act, it is generally presumed that Congress acts intentionally and
    purposely in the disparate inclusion or exclusion.'") (quoting United States v. Wong Kim Bo, 
    472 F.2d 720
    , 722 (5th Cir.
    1972) (alteration in Russello))); cf. Brown v. Gardner, 
    513 U.S. 115
    , 118 (1994); Davenport v. Brown, 
    7 Vet.App. 476
    ,
    484 (1995). In the absence of authority supporting an opposite conclusion, the Secretary's textual argument is suspect.
    To the extent that the Secretary argues that there are over 60,000 cases where hyphenated ratings are currently
    being used to rate injuries, it is also well established that the unchallenged historical practice of the Secretary is not
    evidence that the practice is correct. See Brown v. Gardner, 
    513 U.S. at 122
     ("'The length of regulations' unscrutinized
    and unscrutinizable existence' [does] not alone . . . enhance any claim to deference." (quoting Gardner v. Brown, 
    5 F.3d 1456
    , 1463-64 (Fed. Cir. 1993))). The sheer number of such cases does not prove that even a single one is correct. The
    Secretary has not offered a single example of where the use of a hyphenated rating for an injury would add information
    rather than disguise error. In this regard, the Court notes that many diseases have their own specific diagnostic code.
    See, e.g., 
    38 C.F.R. §§ 4
    .71a, DC 5002 (rheumatoid (atrophic) arthritis), 4.120, DC 7913 (diabetes mellitus), 4.124a,
    DC 8910-14 (epilepsy) (2006). It makes sense to have a tool that explains how such diseases are being rated when the
    explicit diagnostic code for the condition is inadequate. However, the remainder of the rating code is not organized by
    injury. Rather, it is generally organized by body part and the limitations thereon. Where an injury causes a specific
    limitation to a particular body part, there is no apparent need for additional information if the appropriate diagnostic code
    is chosen. If more than one limitation is present, then the appropriate course is to recognize each of them and then
    combine the two separate ratings. See Esteban, 6 Vet.App. at 261. If a service-connected disability causes another
    disability to occur, the appropriate course is to grant secondary service connection and, again, rate the disabilities
    separately. See Libertine v. Brown, 
    9 Vet.App. 521
    , 522 (1996); 
    38 C.F.R. § 3.310
    (a) (2006). The Secretary does not
    offer an example of a situation where a hyphenated rating code would be an appropriate vehicle merely adding
    information about how an injury is being rated instead of avoiding awarding two separate ratings when two separate
    disabilities are present.
    Ultimately, the Court recognizes that it is the prerogative of the Secretary to implement title 38 of the U.S. Code
    5
    We must now address the appropriate remedy. The appellant argues that the facts necessary
    to support separate disability ratings have been found and that the Court should assign a 10%
    disability rating for the MG XX injury and continue the 10% disability rating for his scar.
    Appellant's Br. at 14-15. The Secretary contends that a remand is necessary for appropriate
    factfinding. Secretary's Br. at 6-7. We agree with the Secretary. While the Board found that the
    qualifications for a 20% disability rating for MG XX had not been met (R. at 12), a fair reading of
    the Board decision indicates that the Board did not notice or consider the implications of the
    improper hyphenated rating or make a factual finding on whether the appellant's MG XX injury
    qualifies for a separate 10% disability rating. The Board concluded: "In essence, there is no evidence
    of a moderately severe disability . . . . Therefore, the Board finds that a rating in excess of the
    currently assigned 10[%] injury to Muscle Group XX is not warranted." R. at 12. From this
    statement, the Board evidently believed that the appellant's preexisting 10% disability rating was for
    a muscle injury, when in fact it was for his scar. We decline to read purposeful factfinding into the
    Board's evident confusion. Accordingly, the 10% disability rating for his scar remains under DC
    7804, and the Board must determine whether a separate disability rating is warranted under DC 5320
    for the MG XX injury.
    On remand, the appellant is free to submit additional evidence and argument, and the Board
    must consider any such evidence or argument submitted. See Kay v. Principi, 
    16 Vet.App. 529
    , 534
    (2002); Kutscherousky v. West, 
    12 Vet.App. 369
    , 372-73 (1999) (per curiam order). The Board shall
    proceed expeditiously, in accordance with 38 U.S.C. §§ 5109B, 7112 (West Supp. 2005) (requiring
    Secretary to provide for "expeditious treatment" of claims remanded by Board or Court).
    C. 
    38 C.F.R. § 4.56
     and the Appellant's Arm Injury
    As to the appellant's right, upper arm injury, he argues that he is entitled to a higher rating
    "as a matter of law" because the Board misapplied 
    38 C.F.R. § 4.56
     in failing to acknowledge the
    through regulation. If the Secretary were to amend his regulation so that the sentence on hyphenated rating explicitly
    referred to both "diseases and injuries" then there would be no issue for the Court to resolve regarding the plain meaning
    of the regulation. However, the Court reminds the Secretary a functioning system of laws must give primacy to the plain
    language of authorities, not the Secretary's litigation position. W ithout standard word meanings and rules of construction,
    neither Congress nor the Secretary can know how to write authorities in a way that conveys their intent and no
    practitioner or–more importantly–veteran can rely on a statute or regulation to mean what it appears to say. In such a
    realm, claimants would always be at the mercy of the Secretary's litigation position and there would be no meaningful
    role for the Court to perform under the separation of powers. This is not the manner in which the rule of law operates.
    6
    retained metallic fragments in his muscle. Appellant's Br. at 15. In making this argument, he
    explicitly states that the error occurred "under the facts found by the Board." 
    Id.
     We observe that
    the third enumerated finding of fact in the Board decision is: "The [appellant]'s [SFW] of the right
    upper arm results in no significant residuals and is essentially asymptomatic." R. at 3. This
    enumerated finding was based on the Board's finding, during a December 2001 examination, that
    "the [appellant] himself admitted that his right arm presented no restrictions and movements and
    clinical findings did not demonstrate otherwise." R. at 11. Accordingly, the question is whether an
    appellant who has retained metallic fragments in the muscle but is essentially asymptomatic is
    entitled to a compensable disability under the applicable regulation as a matter of law.
    The appellant bases his argument on the language of 
    38 C.F.R. § 4.56
    , which reads in
    pertinent part:
    (d) Under diagnostic codes 5301 through 5323, disabilities resulting from
    muscle injuries shall be classified as slight, moderate, moderately severe or
    severe, as follows:
    (1) Slight disability of muscles—(i) Type of injury. Simple wound of muscle
    without debridement or infection.
    (ii) History and complaint. Service department record of superficial wound
    with brief treatment and return to duty. Healing with good functional results.
    No cardinal signs or symptoms of muscle disability as defined in paragraph
    (c) of this section.
    (iii) Objective findings. Minimal scar. No evidence of fascial defect,
    atrophy, or impaired tonus. No impairment of function or metallic
    fragments retained in muscle tissue.
    (2) Moderate disability of muscles—(i) Type of injury. Through and through or
    deep penetrating wound of short track from a single shell, small shell or shrapnel
    fragment, without explosive effect of high velocity missile, residuals of
    debridement, or prolonged infection.
    (ii) History and complaint. Service department record or other evidence of
    in-service treatment for the wound. Record of consistent complaint on record
    from first examination forward, of one or more of the cardinal signs and
    symptoms of muscle disability as defined in paragraph (c) of this section,
    particularly lowered threshold of fatigue after average use, affecting the
    particular functions controlled by the injured muscles.
    7
    (iii) Objective Findings. Entrance and (if present) exit scars, small or linear,
    indicating short track of missile through muscle tissue. Some loss of deep
    fascia or muscle substance or impairment of muscle tonus and loss of power
    or lowered threshold of fatigue when compared to the sound side.
    (boldface emphasis added). The essence of the appellant's argument is that this emphasized language
    in § 4.56(d) is a per se bar to rating a muscle injury as "slight" (noncompensable under 
    38 C.F.R. § 4.73
    , DC 5303(2006)) where there are retained metallic fragments. The Secretary responds that
    it is not clear whether the fragments noted are in the muscle or the surrounding soft tissue.
    Secretary's Br. at 6.
    Both parties base their arguments exclusively on the plain language of the regulation.
    However, even though the parties ignore our prior caselaw in this area, we are not free to do so. See
    Harrison v. Derwinski, 
    1 Vet.App. 438
     (1991) (en banc order) (noting that this Court's published
    opinions are binding precedent and must be respected under principle of stare decisis). The meaning
    of the language at issue has previously been considered by this Court in Robertson v. Brown,
    
    5 Vet.App. 70
     (1993). Absent some basis for concluding that Robertson is no longer valid, we are
    obligated to apply it to the extent that it controls the outcome of this case.
    Robertson considered the same regulatory provisions now contained in § 4.56(d) when they
    were previously contained in 
    38 C.F.R. § 4.56
    (c) (1995). In Robertson, the Court addressed the
    meaning of the provisions in a functionally identical context when the appellant argued
    that–regardless of actual disability–he was entitled to a "moderately severe" disability rating "simply
    because [his] wound included debridement." 5 Vet.App. at 73. The Court rejected this interpretation
    of the regulation, held that the criteria mentioned in 
    38 C.F.R. § 4.56
    (c) (1995) were merely "factors
    to be considered," and further held that no specific fact established entitlement to any particular
    rating. Robertson, 5 Vet.App. at 74. The Court concluded that "[t]he adjudicator must consider all
    the factors set forth in the regulations and make determinations based on the facts of the particular
    case." Id.
    On its face, the appellant's argument that retained metal fragments in the muscle would entitle
    him to a particular rating as a matter of law is not functionally different from the argument in
    Robertson that the existence of debridement mandates a specific rating regardless of other facts.
    However, Robertson's validity is not beyond question. Our decision in Robertson was based in part
    8
    on the then-extant heading of § 4.56, which read: "Factors to be considered in the evaluation of
    disabilities residual to healed wounds involving muscle groups due to gunshot or other
    trauma." 
    38 C.F.R. § 4.56
     (1995) (italic emphasis added). After Robertson was decided, the
    regulation was reorganized; a portion of 
    38 C.F.R. § 4.72
     (1995) was merged into § 4.56; and the
    factors listed in paragraph (c) were moved to the newly created paragraph (d). 62 Fed.Reg. 30,235-
    40 (July 3, 1997). At that time, the Secretary dropped the "factors to be considered" language from
    the § 4.56 heading. The Secretary also added a new paragraph (c), which is referred to in the revised
    language that was moved to paragraph (d). Id. The new paragraph (c) states: "For VA rating
    purposes, the cardinal signs and symptoms of muscle disability are loss of power, weakness, lowered
    threshold of fatigue, fatigue-pain, impairment of coordination and uncertainty of movement."
    
    38 C.F.R. § 4.56
    (c). Significantly however, VA's commentary accompanying the reorganization
    explicitly states "we d[o] not intend to propose a substantive change." 62 Fed.Reg. at 30,236. Since
    the reorganization, neither of our published decisions touching on § 4.56 has suggested that the
    change is substantive or that Robertson is no longer good law. See Jones v. Principi, 
    18 Vet.App. 248
     (2004); Mariano v. Principi, 
    17 Vet.App. 305
     (2003).
    In the absence of any basis for finding that Robertson has been superceded, we must conclude
    that it remains valid. In this regard, we note that the addition of the current paragraph (c) is
    consistent with Robertson and the Secretary's comment that no substantive change was intended.
    Robertson interpreted the prior version of the regulation as creating what is, in essence, a totality-of-
    the-circumstances test. While the test was not explicit in the prior version or in Robertson, the new
    paragraph (c) merely had the effect of memorializing the practice of giving the commonly detectable
    manifestations of muscle disability priority in evaluating all the factors to be considered. As we held
    in Robertson and reaffirm here, 
    38 C.F.R. § 4.56
    (d) is essentially a totality-of-the-circumstances test
    and no single factor is per se controlling.
    Thus contrary to the appellant's argument in this case, because no single fact is controlling,
    Robertson contradicts his contention that he was entitled to a compensable rating as a matter of law
    based on retained metallic fragments in the muscle. Accordingly, the Board's decision to assign a
    "slight" (noncompensable) rating for his arm injury based upon the uncontested finding that the
    appellant is "essentially asymptomatic" was not a misapplication of the regulation as a matter of law.
    9
    The only other argument the appellant asserts to challenge Board's decision as to his arm
    injury is that the Board acted unconstitutionally in applying the muscle-injury rating criteria
    differently to two similar injuries. We need not address that argument here. As we are vacating the
    Board's decision as to the rating of the muscle injury to appellant's back and remanding that matter
    for readjudication, there is no final decision as to that muscle injury and it cannot be said at this time
    that these two muscle injuries have been treated differently. See Cromer v. Nicholson, 
    19 Vet.App. 215
    , 219 (2005) (indicating there is no basis for deciding an issue that is not supported by a factual
    predicate).
    III. CONCLUSION
    Accordingly, the Board's decision denying the appellant's claim for an increased rating for
    residuals of an SFW to the back is VACATED and that matter is REMANDED for further
    proceedings consistent with this opinion; the decision is otherwise AFFIRMED.
    GREENE, Chief Judge, concurring: I concur with the holdings in this case. I write separately,
    however, because I would hold additionally that Mr. Tropf's constitutional argument is without merit
    and should be disposed of accordingly. The Equal Protection Clause "is essentially a direction that
    all persons similarly situated should be treated alike." Cleburne v. Cleburne Living Ctr, Inc.,
    
    473 U.S. 432
    , 439 (1985). Mr. Tropf argues that treating his arm and back disabilities differently
    in the rating schedule is a violation of due process; he asserts that he should be awarded a
    compensable rating for his arm because it is essentially the same injury as his back injury. That
    argument is without merit because treating a veteran's own injuries differently is not unequal
    treatment of "persons similarly situated." Cleburne, supra (emphasis added); Reeves v. West,
    
    11 Vet.App. 255
     (1998); Clarke v. Brown, 
    10 Vet.App. 20
     (1997).
    10