ICD-10-CM · Chapter 6 · G00–G99
G35.B1
Active primary progressive multiple sclerosis
Diseases of the nervous system
Quick facts
- Code
- G35.B1
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 6 — Diseases of the nervous system
- Category
- G35 — Multiple sclerosis
- Specificity
- 5 characters
How coders use this code
ICD-10-CM G35.B1 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of active primary progressive multiple sclerosis. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in G35
- G35Multiple sclerosis
- G35.ARelapsing-remitting multiple sclerosis
- G35.BPrimary progressive multiple sclerosis
- G35.B0Primary progressive multiple sclerosis, unspecified
- G35.B2Non-active primary progressive multiple sclerosis
- G35.CSecondary progressive multiple sclerosis
- G35.C0Secondary progressive multiple sclerosis, unspecified
- G35.C1Active secondary progressive multiple sclerosis
- G35.C2Non-active secondary progressive multiple sclerosis
- G35.DMultiple sclerosis, unspecified
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