ICD-10-CM › G00-G99 › G35-G37 › G35 Multiple sclerosis › G35.C

G35.C

Secondary progressive multiple sclerosis

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2026 onwards. It has never been valid for submission on its own.

Submit one of these 3 more specific codes instead:

  • G35.C0 Secondary progressive multiple sclerosis, unspecified
  • G35.C1 Active secondary progressive multiple sclerosis
  • G35.C2 Non-active secondary progressive multiple sclerosis

What has happened to this code

Every change the publisher made, from 2026 to now.

  1. FY2026 Added to the code set Secondary progressive multiple sclerosis

Codes in the same group

CodeDescriptionStatus
G35.A Relapsing-remitting multiple sclerosis Valid
G35.B Primary progressive multiple sclerosis Not billable
G35.D Multiple sclerosis, unspecified Valid