G35.B1

✓ Billable

Active primary progressive multiple sclerosis

Diseases of the nervous system (G00-G99)

Also Known As

Primary progressive multiple sclerosis with evidence of inflammatory disease activity

✅ No additional coding notes for G35.B1

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Code Information

CodeG35.B1

BillableYes

ParentG35.B

CategoryDiseases of the nervous system (G00-G99)

Excludes10 rule(s)

Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)