ICD10Check
CheckerBrowseOpen

M24.6

⚠ Non-billable (Header)

Ankylosis of joint

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

❌ Excludes1

direct

Cannot be coded with M24.6

  • • stiffness of joint without ankylosis (M25.6-)

❌ Excludes1

inherited from M24

Rules from parent category M24: Other specific joint derangements

  • • current injury - see injury of joint by body region

⚠️ Excludes2

direct

May be coded together if both conditions coexist

  • • spine (M43.2-)

⚠️ Excludes2

inherited from M24

Rules from parent category M24: Other specific joint derangements

  • • ganglion (M67.4)
  • • snapping knee (M23.8-)
  • • temporomandibular joint disorders (M26.6-)

Child Codes (9)

M24.60Ankylosis, unspecified jointM24.61Ankylosis, shoulderM24.62Ankylosis, elbowM24.63Ankylosis, wristM24.64Ankylosis, handM24.65Ankylosis, hipM24.66Ankylosis, kneeM24.67Ankylosis, ankle and footM24.69Ankylosis, other specified joint

🧪 Validate Combinations

Add M24.6 to the Excludes Checker to validate against your full code list.

Open in Checker →

Code Information

CodeM24.6
BillableNo — Header code
ParentM24
CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)
Excludes12 rule(s)
Excludes24 note(s)
Child codes9

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)