ICD-10 M21.611
Billable / SpecificBunion of right foot
About ICD-10-CM M21.611
ICD-10-CM code M21.611 represents Bunion of right foot. This is a billable/specific code in the Musculoskeletal and Connective Tissue chapter (block M21). The 2026 edition of ICD-10-CM M21.611 became effective on October 1, 2025.
Medicare LCD Coverage for M21.611
Local Coverage Determinations (LCDs) from CMS MACs that list M21.611 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 M21.611.
1 Cigna
2 Aetna
CPT Codes Commonly Billed with M21.611
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.
Convert M21.611 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| M21.611 | 7271 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To M21.611
Other codes in section M20-M25 (Other joint disorders).
ICD-10 M21.611, Billing FAQ
Is ICD-10 code M21.611 billable? +
Yes, M21.611 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What ICD-9 codes does M21.611 map to? +
Per CMS GEMs, M21.611 maps to ICD-9 codes: 7271. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 18, 2026.
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