M62.4Contracture of muscle

M62.4 is the ICD-10-CM diagnosis code for contracture of muscle. It belongs to category M62 (other disorders of muscle), block M60-M63 (disorders of muscles) 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 10 subcodes must be used instead.

Within M62 (other disorders of muscle), M62.4 is specifically for contracture of muscle. Related codes cover separation of muscle (nontraumatic) (M62.0), other rupture of muscle (nontraumatic) (M62.1), nontraumatic ischemic infarction of muscle (M62.2), Immobility syndrome (paraplegic) (M62.3), muscle wasting and atrophy, not elsewhere classified (M62.5), other specified disorders of muscle (M62.8) and disorder of muscle, unspecified (M62.9).

To report this condition, pick the subcode that matches the documentation: M62.40 (unspecified site), M62.41 (shoulder), M62.42 (upper arm), M62.43 (forearm), M62.44 (hand), M62.45 (thigh), M62.46 (lower leg), M62.47 (ankle and foot) and 2 more.

Don't report M62.4 together with the conditions in its Excludes1 note: contracture of joint (M24.5-).

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