M99.21
✓ BillableSubluxation stenosis of neural canal of cervical region
Diseases of the musculoskeletal system and connective tissue (M00-M99)
✅ No additional coding notes for M99.21
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CodeM99.21
BillableYes
ParentM99.2
CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)
Excludes10 rule(s)
Excludes20 note(s)
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)