Osteochondritis dissecans, joints of unspecified hand

This code signifies a condition where a segment of cartilage and underlying bone detaches or partially detaches from the articular surface within an unspecified joint of the hand. This osteochondral lesion can lead to pain, swelling, and mechanical symptoms such as locking or catching.

Apply this code when documentation specifies osteochondritis dissecans affecting a hand joint, but the specific joint (e.g., carpometacarpal, metacarpophalangeal, interphalangeal) is not precisely identified. This code is appropriate when the laterality of the hand is also unspecified.

• Avoid using this code if the specific hand joint is documented; instead, use a more precise code from the M93.24- subcategory.
• Ensure documentation clearly states "osteochondritis dissecans" and refers to the hand.
• If laterality (left or right hand) is specified, use the appropriate laterality code (M93.241, M93.242).