ICD-10 M19.90
Billable / SpecificUnspecified osteoarthritis, unspecified site
About ICD-10-CM M19.90
ICD-10-CM code M19.90 represents Unspecified osteoarthritis, unspecified site. This is a billable/specific code in the Musculoskeletal and Connective Tissue chapter (block M19). The 2026 edition of ICD-10-CM M19.90 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under M19.90. Per CMS ICD-10-CM Tabular 2026.
- Arthrosis NOS
- Arthritis NOS
- Osteoarthritis NOS
Medicare LCD Coverage for M19.90
Local Coverage Determinations (LCDs) from CMS MACs that list M19.90 as a covered diagnosis.
Showing top 10 of 160 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing M19.90.
4 Medicare
1 Aetna
CPT Codes Commonly Billed with M19.90
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 M19.90 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 |
|---|---|---|
| M19.90 | 71530 | 10000 |
| M19.90 | 71590 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To M19.90
Other codes in section M15-M19 (Osteoarthritis).
ICD-10 M19.90, Billing FAQ
Is ICD-10 code M19.90 billable? +
Yes, M19.90 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to M19.90? +
ICD-10 M19.90 includes: Arthrosis NOS; Arthritis NOS; Osteoarthritis NOS.
What ICD-9 codes does M19.90 map to? +
Per CMS GEMs, M19.90 maps to ICD-9 codes: 71530, 71590. 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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