M24.661Billable
Ankylosis, right knee
- Chapter
- 13. Diseases of the musculoskeletal system and connective tissue
- Category
- M24
- Effective date
- October 1, 2026
Related codes in category M24
M24Other specific joint derangementsM24.0Loose body in jointM24.00Loose body in unspecified jointYesM24.01Loose body in shoulderM24.011Loose body in right shoulderYesM24.012Loose body in left shoulderYesM24.019Loose body in unspecified shoulderYesM24.02Loose body in elbowM24.021Loose body in right elbowYesM24.022Loose body in left elbowYesM24.029Loose body in unspecified elbowYesM24.03Loose body in wrist
Frequently asked questions
What is ICD-10 code M24.661?
M24.661 is an ICD-10-CM diagnosis code for Ankylosis, right knee.
Is M24.661 a billable code?
Yes. M24.661 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is M24.661 in?
M24.661 falls under Chapter 13: Diseases of the musculoskeletal system and connective tissue.
When did M24.661 become effective?
M24.661 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to M24.661?
M24.661 belongs to category M24, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.