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G35.C

Non-billable

Secondary progressive multiple sclerosis

G35.C is the ICD-10-CM code for Secondary progressive multiple sclerosis. It is a non-billable category code — use a more specific child code such as G35.C0 for billing.

Status
Header (non-billable)
Chapter
G00-G99
Parent
G35
Subcodes
3
Edition
FY2026

G00-G99 Diseases of the nervous system

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code G35.C?
G35.C is the ICD-10-CM code for "Secondary progressive multiple sclerosis". It falls under G00-G99 Diseases of the nervous system.
Is G35.C a billable code?
No — G35.C is a non-billable header code. Use a more specific child code (such as G35.C0) for billing.
What are the subcodes of G35.C?
G35.C has 3 more specific child codes, including G35.C0, G35.C1, G35.C2.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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