G64 — Other disorders of peripheral nervous system
Is G64 billable?
Yes — G64 is billable for FY2027. G64 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. G64 may be submitted for encounters from October 1, 2026 through September 30, 2027.
G64 at a glance
| Code | G64 |
|---|---|
| Description | Other disorders of peripheral nervous system |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does G64 group to?
G64 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 G64 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to G64. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Disorder › peripheral nervous system NEC (of)
Inclusion terms
Alternative wording in documentation that is classified to G64.
- Disorder of peripheral nervous system NOS
Excludes1 — never code together — inherited from G60-G65
The conditions below can never be reported together with G64 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 G64, but a patient may have both at the same time. When documentation supports it, G64 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 G64 existed?
G64 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.