ICD-10 M43.6
Billable / SpecificTorticollis
About ICD-10-CM M43.6
ICD-10-CM code M43.6 represents Torticollis. This is a billable/specific code in the Musculoskeletal and Connective Tissue chapter (block M43). The 2026 edition of ICD-10-CM M43.6 became effective on October 1, 2025.
Type 1 Excludes
Pure excludes, these codes can never be coded together with M43.6. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- congenital (sternomastoid) torticollis (Q68.0)
- current injury - see Injury, of spine, by body region
- ocular torticollis (R29.891)
- psychogenic torticollis (F45.8)
- spasmodic torticollis (G24.3)
- torticollis due to birth injury (P15.2)
Medicare LCD Coverage for M43.6
Local Coverage Determinations (LCDs) from CMS MACs that list M43.6 as a covered diagnosis.
Showing top 10 of 857 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing M43.6.
1 Aetna
1 Cigna
5 Medicare
CPT Codes Commonly Billed with M43.6
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 M43.6 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 |
|---|---|---|
| M43.6 | 7235 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To M43.6
Other codes in section M40-M43 (Deforming dorsopathies).
ICD-10 M43.6, Billing FAQ
Is ICD-10 code M43.6 billable? +
Yes, M43.6 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What codes are Type 1 Excludes for M43.6? +
Type 1 Excludes (never code together with M43.6): congenital (sternomastoid) torticollis (Q68.0); current injury - see Injury, of spine, by body region; ocular torticollis (R29.891)
What ICD-9 codes does M43.6 map to? +
Per CMS GEMs, M43.6 maps to ICD-9 codes: 7235. 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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