M24.1Other articular cartilage disorders

M24.1 is the ICD-10-CM diagnosis code for other articular cartilage disorders. It belongs to category M24 (other specific joint derangements), block M20-M25 (other joint disorders) and chapter 13 (diseases of the musculoskeletal system and connective tissue). It is a header code, so it can't be reported by itself; one of its 8 subcodes must be used instead.

Within M24, choose M24.1 (Other articular cartilage disorders) only when documentation doesn't support a more specific option: Loose body in joint (M24.0), disorder of ligament (M24.2), pathological dislocation of joint, not elsewhere classified (M24.3), recurrent dislocation of joint (M24.4), contracture of joint (M24.5), ankylosis of joint (M24.6), Protrusio acetabuli (M24.7), not elsewhere classified (M24.8) and 1 more.

To report this condition, pick the subcode that matches the documentation: M24.10 (unspecified site), M24.11 (shoulder), M24.12 (elbow), M24.13 (wrist), M24.14 (hand), M24.15 (hip), M24.17 (ankle and foot) and M24.19 (other specified site).

The conditions in its Excludes2 note aren't part of M24.1, but may be coded alongside it if the patient has both: chondrocalcinosis (M11.1-, M11.2-), internal derangement of knee (M23.-), metastatic calcification (E83.59) and ochronosis (E70.29).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.