C&P Exam Adequacy Under 38 C.F.R. § 3.317: Fibromyalgia and Undiagnosed Symptoms

Direct answer

An examination that results in a definitive fibromyalgia diagnosis but does not address whether the veteran's remaining, unexplained symptoms constitute a separately qualifying undiagnosed illness is not adequate for rating purposes under 38 C.F.R. § 3.317. The regulation expressly contemplates that a Persian Gulf veteran's qualifying chronic disability may result from "any combination of the following": (A) an undiagnosed illness; (B) a medically unexplained chronic multisymptom illness (MUCMI) such as fibromyalgia; or (C) a functional gastrointestinal disorder [1]. An examiner who stops at the fibromyalgia diagnosis without evaluating overlapping or residual symptoms that fall outside that diagnosis has not completed the inquiry § 3.317 demands.

Analysis

1. The "any combination" language requires separate analysis of each potential qualifying disability

Section 3.317(a)(2)(i) defines a "qualifying chronic disability" as one "resulting from any of the following (or any combination of the following)":

• (A) An undiagnosed illness;
• (B) A medically unexplained chronic multisymptom illness that is defined by a cluster of signs or symptoms, such as fibromyalgia, chronic fatigue syndrome, or functional gastrointestinal disorders;
• (and related sub-categories) [1].

This disjunctive-plus-combinatory structure means a veteran may simultaneously have a diagnosed MUCMI (fibromyalgia) and a separate undiagnosed illness comprising symptoms not explained by the fibromyalgia diagnosis or any other known clinical diagnosis. An adequate examination must address both possibilities.

2. The "cannot be attributed to any known clinical diagnosis" requirement applies to undiagnosed illness separately

Section 3.317(a)(1)(ii) conditions compensation on the disability being one that "by history, physical examination, and laboratory tests cannot be attributed to any known clinical diagnosis" [1]. When an examiner assigns a definitive fibromyalgia diagnosis, that diagnosis explains a defined cluster of signs and symptoms. But to the extent the veteran reports symptoms that are not part of the fibromyalgia cluster and are not attributable to any other known clinical diagnosis, those symptoms potentially qualify as an undiagnosed illness under § 3.317(a)(2)(i)(A) [1]. The examiner must therefore:

• Identify the full constellation of symptoms reported and observed;
• Determine which symptoms are explained by the fibromyalgia diagnosis (or any other known clinical diagnosis);
• Determine whether any residual symptoms remain unexplained after that diagnostic attribution; and
• Address whether those unexplained symptoms constitute a separate undiagnosed illness under § 3.317(a)(2)(i)(A).

Failure to perform this sequential analysis leaves the record insufficient to determine whether the veteran has "any combination" of qualifying chronic disabilities as § 3.317(a)(2)(i) expressly permits [1].

3. The examination must be adequate for rating purposes

Under 38 C.F.R. § 3.326(a), a VA examination is authorized when medical evidence "is not adequate for rating purposes" [9]. An examination report that diagnoses fibromyalgia but is silent on whether overlapping symptoms warrant separate undiagnosed-illness consideration is inadequate because it does not permit the rater to evaluate the full scope of the veteran's potentially qualifying disabilities under § 3.317. The rater cannot determine, from such a report, whether separate service connection is warranted for an undiagnosed illness under § 3.317(a)(2)(i)(A) in addition to the fibromyalgia evaluation under § 3.317(a)(2)(i)(B) [1].

4. Practical implications for advocacy

A C&P examination that provides a definitive fibromyalgia diagnosis but does not address residual, unexplained symptoms is subject to challenge on adequacy grounds. The advocate should identify the specific symptoms the examiner failed to account for and argue that the examiner's failure to address whether those symptoms constitute a separate undiagnosed illness under § 3.317(a)(2)(i)(A) renders the examination incomplete and inadequate for rating purposes under § 3.326(a) [1, 9]. This is particularly compelling where the veteran's lay statements describe symptoms outside the fibromyalgia diagnostic cluster—such as gastrointestinal symptoms, neurological symptoms, or respiratory symptoms—that the examiner neither attributed to a known clinical diagnosis nor evaluated as potential components of an undiagnosed illness [1].

Key points

• § 3.317(a)(2)(i) recognizes "any combination" of qualifying chronic disabilities, including both diagnosed MUCMIs (like fibromyalgia) and undiagnosed illnesses [1].
• An adequate examination must address both: (1) the diagnosed MUCMI and (2) whether any symptoms unexplained by that diagnosis (or any other known clinical diagnosis) constitute a separate undiagnosed illness under § 3.317(a)(2)(i)(A) [1].
• The "cannot be attributed to any known clinical diagnosis" standard in § 3.317(a)(1)(ii) applies independently to undiagnosed illness claims; a fibromyalgia diagnosis alone does not satisfy this requirement for symptoms outside its diagnostic scope [1].
• An examiner's failure to address residual undiagnosed symptoms renders the examination inadequate for rating purposes under § 3.326(a), because the rater cannot evaluate whether the veteran is entitled to separate consideration for an undiagnosed illness [9, 1].