G37

Other demyelinating diseases of central nervous system

FY2027Chapter 6: Diseases of the nervous system/G35–G37 Demyelinating diseases of the central nervous system

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

G37 is a non-billable ICD-10-CM code category for other demyelinating diseases of central nervous system. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are G37.0 Diffuse sclerosis of central nervous system, G37.1 Central demyelination of corpus callosum, G37.2 Central pontine myelinolysis, G37.3 Acute transverse myelitis in demyelinating disease of central nervous system and 4 more. Its coding notes include 8 Excludes2 entries.

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (8 notes)
Inherited from Chapter 6 Diseases of the nervous system
  • 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)

More specific codes under G37 8