M04
Non-billableAutoinflammatory syndromes
M04 is the ICD-10-CM code for Autoinflammatory syndromes. It is a non-billable category code — use a more specific child code such as M04.1 for billing.
- Status
- Header (non-billable)
- Chapter
- M00-M99
- Subcodes
- 4
- Edition
- FY2026
M00-M99 Diseases of the musculoskeletal system and connective tissue
Excludes2 — not included here
- •Crohn's disease (K50.-)
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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