ICD10Check
CheckerBrowseOpen

M21.85

⚠ Non-billable (Header)

Other specified acquired deformities of thigh

Diseases of the musculoskeletal system and connective tissue (M00-M99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

Check This Code

⚠️ Excludes2

inherited from M21.8

Rules from parent category M21.8: Other specified acquired deformities of limbs

  • • coxa plana (M91.2)

Child Codes (3)

M21.851Other specified acquired deformities of right thighM21.852Other specified acquired deformities of left thighM21.859Other specified acquired deformities of unspecified thigh

🧪 Validate Combinations

Add M21.85 to the Excludes Checker to validate against your full code list.

Open in Checker →

Code Information

CodeM21.85
BillableNo — Header code
ParentM21.8
CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)
Excludes10 rule(s)
Excludes21 note(s)
Child codes3

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)