Question 1

What is ICD-10 code G62.9?

Accepted Answer

G62.9 is the ICD-10-CM diagnosis code for polyneuropathy, unspecified. Nerve damage affecting multiple nerves where the underlying cause has not been identified or documented. G62.9 sits in the ICD-10-CM chapter for diseases of the nervous system (g00-g99), within the section covering polyneuropathies and other disorders of the peripheral nervous system (g60-g65).

G62.9 is a billable ICD-10-CM code, but the current payload does not show a mapping under the CMS-HCC V28 or V24 community payment models, and none under the ESRD, Part D RxHCC, or HHS-HCC models. Do not assign risk adjustment value from this page when no source-backed mapping is shown; verify the applicable model and payment year.

This is a default code; use only when the specific type or cause of polyneuropathy cannot be determined.

Question 2

Is G62.9 an HCC code?

Accepted Answer

G62.9 has no payable CMS-HCC V28 mapping in the final FY2026 CMS file.

Question 3

Is G62.9 billable?

Accepted Answer

Yes. G62.9 is a billable ICD-10-CM code that can be reported on professional and institutional claims as a primary or secondary diagnosis when the provider documentation supports the specific condition described. Billable codes in ICD-10-CM are coded to the highest level of specificity available for the documented diagnosis. G62.9 is current for fiscal year 2026 and remains in the active CMS ICD-10-CM code set published by the National Center for Health Statistics.

Question 4

Which HCC does G62.9 map to under V28?

Accepted Answer

G62.9 has no payable CMS-HCC V28 mapping in the final FY2026 CMS file.

Question 5

What RAF reference is published for G62.9?

Accepted Answer

G62.9 has no V28 reference coefficient because the final FY2026 source verifies no payable V28 mapping.

Question 6

What is the V28 vs V24 difference for G62.9?

Accepted Answer

G62.9 has verified no payable V28 mapping in the final FY2026 source. Select a historical effective period before making any V24 comparison.

Question 7

What documentation supports G62.9?

Accepted Answer

This is a default code; use only when the specific type or cause of polyneuropathy cannot be determined Query the provider if additional diagnostic workup or documentation can specify the etiology G62.9 is not a CMS-HCC V28 payment code in the verified current source, so MEAT is not the payment hook. Documentation still has to support the diagnosis if you report it.

Question 8

Can G62.9 be a primary diagnosis?

Accepted Answer

Yes. G62.9 carries no code-first instruction in the FY2026 tabular, so it can be the first-listed diagnosis when it is the condition chiefly responsible for the encounter and the note supports it, and it can also be reported as a secondary diagnosis. For risk adjustment the order does not matter; the V28 category is the same either way.

Question 9

Which codes cannot be reported with G62.9?

Accepted Answer

The Excludes1 note that applies to G62.9 lists neuralgia NOS (M79.2); neuritis NOS (M79.2); peripheral neuritis in pregnancy (O26.82-); radiculitis NOS (M54.10). An Excludes1 condition is not reported together with G62.9; report one or the other, unless the two conditions are unrelated, which the ICD-10-CM Official Guidelines (Section I.A.12.a) allow. The Excludes2 note lists certain conditions originating in the perinatal period (P04-P96); certain infectious and parasitic diseases (A00-B99); complications of pregnancy, childbirth and the puerperium (O00-O9A); congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99); and 4 more (see the notes on this page); those are separate conditions that may be reported together with G62.9 when both are documented.

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G62.9

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G62.9 ICD-10-CM Code: Polyneuropathy, unspecified

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G62.9

Is G62.9 an HCC code?

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What This Code Means

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Work G62.9 in HCC Buddy