ICD-10 M15
Non-Billable HeaderPolyosteoarthritis
About ICD-10-CM M15
ICD-10-CM code M15 represents Polyosteoarthritis. This is a non-billable header code in the Musculoskeletal and Connective Tissue chapter (block M15). The 2026 edition of ICD-10-CM M15 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Type 1 Excludes
Pure excludes, these codes can never be coded together with M15. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- bilateral involvement of single joint (M16-M19)
Includes
- arthritis of multiple sites
Medicare LCD Coverage for M15
Local Coverage Determinations (LCDs) from CMS MACs that list M15 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing M15.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but M15 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with M15
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Codes Adjacent To M15
Other codes in section M15-M19 (Osteoarthritis).
ICD-10 M15, Billing FAQ
Is ICD-10 code M15 billable? +
No, M15 is a non-billable header code. Use a more specific child code from block M15 when submitting claims.
What codes are Type 1 Excludes for M15? +
Type 1 Excludes (never code together with M15): bilateral involvement of single joint (M16-M19)
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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