G63 — Polyneuropathy in diseases classified elsewhere
Is G63 billable?
Yes — G63 is billable for FY2027. G63 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. G63 may be submitted for encounters from October 1, 2026 through September 30, 2027.
G63 at a glance
| Code | G63 |
|---|---|
| Description | Polyneuropathy in diseases classified elsewhere |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
What Medicare edits apply to G63?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name G63 directly.
This code describes a manifestation of an underlying disease. The underlying condition must be sequenced before it, so it can never be the principal or first-listed diagnosis.
Which MS-DRGs does G63 group to?
G63 sits in MDC 01 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 073Cranial and Peripheral Nerve Disorders with MCCmedical
- 074Cranial and Peripheral Nerve Disorders without MCCmedical
How is G63 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to G63. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Neuritis › amyloid, any site (rheumatoid)
- Neuritis › gouty (rheumatoid)
- Neuropathy, neuropathic › uremic
- Neuropathy, neuropathic › vitamin B12
- Polyneuritis, polyneuritic › due to lack of vitamin NEC
- Polyneuritis, polyneuritic › nutritional
- Polyneuropathy › amyloid (peripheral)
- Polyneuropathy › nutritional NEC (peripheral)
- Neuropathy, neuropathic › vitamin B12 › with anemia
- Pellagra › with › polyneuropathy (alcoholic)
- Polyneuropathy › amyloid › transthyretin-relatedfamilial (peripheral)
- Polyneuropathy › in › amyloidosis, familial (peripheral)
Excludes1 — never code together
The conditions below can never be reported together with G63 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- 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)
Code first
The underlying condition below must be sequenced before G63. G63 describes a manifestation and cannot be the principal or first-listed diagnosis.
Excludes1 — never code together — inherited from G60-G65
The conditions below can never be reported together with G63 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from Chapter 6
The conditions below are not part of G63, but a patient may have both at the same time. When documentation supports it, G63 and the excluded code may both be reported.
- 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)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
How long has G63 existed?
G63 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with G63?
ICD-10-CM declares these codes mutually exclusive with G63 — exactly one of each pair can be correct for a given encounter.