M93.04Acute slipped upper femoral epiphysis, unstable (nontraumatic)

M93.04 is the ICD-10-CM diagnosis code for acute slipped upper femoral epiphysis, unstable (nontraumatic). It belongs to category M93 (other osteochondropathies), block M91-M94 (Chondropathies) 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 4 subcodes must be used instead.

Within M93.0 (slipped upper femoral epiphysis (nontraumatic)), M93.04 is specifically for acute slipped upper femoral epiphysis, unstable (nontraumatic). Related codes cover unspecified slipped upper femoral epiphysis (nontraumatic) (M93.00), acute slipped upper femoral epiphysis, stable (nontraumatic) (M93.01), chronic slipped upper femoral epiphysis, stable (nontraumatic) (M93.02), acute on chronic slipped upper femoral epiphysis, stable (nontraumatic) (M93.03), acute on chronic slipped upper femoral epiphysis, unstable (nontraumatic) (M93.05), acute slipped upper femoral epiphysis, unspecified stability (nontraumatic) (M93.06) and acute on chronic slipped upper femoral epiphysis, unspecified stability (nontraumatic) (M93.07).

To report this condition, pick the subcode that matches the documentation: M93.041 (right hip), M93.042 (left hip), M93.043 (unspecified hip) and M93.044 (bilateral hips).

It was added in FY2023, effective October 1, 2022.