G63
Billable codePolyneuropathy in diseases classified elsewhere
The ICD-10 code for polyneuropathy in diseases classified elsewhere is G63.
Clinical notes
Code first
This code represents a manifestation of an underlying disease. Coding convention requires the underlying (etiology) code to be sequenced first, with this code listed second.
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
- polyneuropathy (in):
- diabetes mellitus (E08-E13 with .42)
- diphtheria (A36.83)
- infectious mononucleosis complicated by polyneuropathy (B27.0-B27.9 with fifth character 1)
- Lyme disease (A69.22)
- mumps (B26.84)
- postherpetic (B02.23)
- rheumatoid arthritis (M05.5-)
- scleroderma (M34.83)
- systemic lupus erythematosus (M32.19)
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •This code represents a manifestation. Documentation should identify the underlying condition, which must be coded first.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- G60Hereditary and idiopathic neuropathynon-billable header
- G61Inflammatory polyneuropathynon-billable header
- G62Other and unspecified polyneuropathiesnon-billable header
- G64Other disorders of peripheral nervous system
- G65Sequelae of inflammatory and toxic polyneuropathiesnon-billable header
- G63Polyneuropathy in diseases classified elsewhere
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 3574Approximate match
- 3571Approximate match
- 3573Approximate match
Associated MS-DRGs
G63 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.