Chondrolysis, unspecified hip

This code signifies the spontaneous, non-inflammatory degeneration and destruction of articular cartilage within the hip joint, without a more specific cause identified. It represents a progressive loss of cartilage leading to joint space narrowing and potential subchondral bone changes. This condition often results in pain, stiffness, and limited range of motion in the affected hip.

Use this code when documentation indicates chondrolysis of the hip, but the specific laterality (right or left) is not specified. This diagnosis is typically supported by imaging studies (e.g., X-ray, MRI) showing cartilage loss and clinical findings consistent with hip degeneration. It is appropriate when the underlying etiology of the cartilage breakdown is not explicitly stated or determined.

• Avoid using this code if the laterality of the affected hip is documented; instead, choose M94.351 for right hip or M94.352 for left hip.
• Do not confuse with osteochondritis dissecans (M93.2-), which involves a separation of cartilage and subchondral bone.
• Always review documentation for any underlying causes of chondrolysis, such as trauma or infection, which would necessitate additional or different coding.