G37.8 — Other specified demyelinating diseases of central nervous system

Not billable

Is G37.8 billable?

No — G37.8 is a non-billable header code. G37.8 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 2 billable codes beneath G37.8.

Billable codes under this header

G37.8 at a glance

Code	G37.8
Description	Other specified demyelinating diseases of central nervous system
Billable	No — header code
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Excludes2 — not included here — inherited from Chapter 6

The conditions below are not part of G37.8, but a patient may have both at the same time. When documentation supports it, G37.8 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)

What codes fall under G37.8? (2)

How long has G37.8 existed?

G37.8 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

FY2024: G37.8 stopped being billable

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.