G35.B: Primary progressive multiple sclerosis

New code · FY2026

Not billable: this is a header. Use one of the more specific codes below.

• New code, effective October 1, 2025 (FY2026).

Code breakdown

Codes under G35.B

• G35.B0 Primary progressive multiple sclerosis, unspecified
• G35.B1 Active primary progressive multiple sclerosis
• G35.B2 Non-active primary progressive multiple sclerosis

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All FY2026 ICD-10-CM changes

ICD-10-CM codes and descriptions are from the CMS and NCHS code files. Coverage is from the CMS Medicare Coverage Database billing and coding articles.