ICD-10 M20.10
Billable / SpecificHallux valgus (acquired), unspecified foot
About ICD-10-CM M20.10
ICD-10-CM code M20.10 represents Hallux valgus (acquired), unspecified foot. This is a billable/specific code in the Musculoskeletal and Connective Tissue chapter (block M20). The 2026 edition of ICD-10-CM M20.10 became effective on October 1, 2025.
Medicare LCD Coverage for M20.10
Local Coverage Determinations (LCDs) from CMS MACs that list M20.10 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 M20.10.
1 Cigna
2 Aetna
CPT Codes Commonly Billed with M20.10
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 28292 Bunionectomy — hallux valgus bilateral, hammer toe, congenital foot deformity Podiatry
Convert M20.10 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 |
|---|---|---|
| M20.10 | 7271 | 10000 |
| M20.10 | 7350 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To M20.10
Other codes in section M20-M25 (Other joint disorders).
ICD-10 M20.10, Billing FAQ
Is ICD-10 code M20.10 billable? +
Yes, M20.10 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What CPT codes are commonly billed with M20.10? +
Procedures frequently paired with M20.10 include: 28292.
What ICD-9 codes does M20.10 map to? +
Per CMS GEMs, M20.10 maps to ICD-9 codes: 7271, 7350. 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 May 31, 2026.
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