M17.12
✓ BillableUnilateral primary osteoarthritis, left knee
Diseases of the musculoskeletal system and connective tissue (M00-M99)
✅ No additional coding notes for M17.12
🧪 Validate Combinations
Add M17.12 to the Excludes Checker to validate against your full code list.
Open in Checker →Code Information
CodeM17.12
BillableYes
ParentM17.1
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)