ICD-10 M50.921
Billable / SpecificUnspecified cervical disc disorder at C4-C5 level
About ICD-10-CM M50.921
ICD-10-CM code M50.921 represents Unspecified cervical disc disorder at C4-C5 level. This is a billable/specific code in the Musculoskeletal and Connective Tissue chapter (block M50). The 2026 edition of ICD-10-CM M50.921 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under M50.921. Per CMS ICD-10-CM Tabular 2026.
- Unspecified C4-C5 cervical disc disorder
Medicare LCD Coverage for M50.921
Local Coverage Determinations (LCDs) from CMS MACs that list M50.921 as a covered diagnosis.
Showing top 10 of 41 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing M50.921.
2 Cigna
3 Medicare
CPT Codes Commonly Billed with M50.921
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 M50.921 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 |
|---|---|---|
| M50.921 | 72291 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To M50.921
Other codes in section M50-M54 (Other dorsopathies).
ICD-10 M50.921, Billing FAQ
Is ICD-10 code M50.921 billable? +
Yes, M50.921 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 M50.921? +
ICD-10 M50.921 includes: Unspecified C4-C5 cervical disc disorder.
What ICD-9 codes does M50.921 map to? +
Per CMS GEMs, M50.921 maps to ICD-9 codes: 72291. 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 June 1, 2026.
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