M24.2Disorder of ligament

M24.2 is the ICD-10-CM diagnosis code for disorder of ligament. 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 9 subcodes must be used instead.

Within M24 (other specific joint derangements), M24.2 is specifically for disorder of ligament. Related codes cover Loose body in joint (M24.0), other articular cartilage disorders (M24.1), 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: M24.20 (unspecified site), M24.21 (shoulder), M24.22 (elbow), M24.23 (wrist), M24.24 (hand), M24.25 (hip), M24.27 (ankle and foot), M24.28 (vertebrae) and 1 more.

Don't report M24.2 together with the conditions in its Excludes1 note: familial ligamentous laxity (M35.7).

The conditions in its Excludes2 note aren't part of M24.2, but may be coded alongside it if the patient has both: internal derangement of knee (M23.5-M23.8X9).

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