Osteochondritis dissecans, r ankle and joints of right foot

This code identifies a condition where a segment of cartilage and underlying bone in the right ankle or other joints of the right foot separates or becomes necrotic due to a lack of blood supply. This typically results in pain, swelling, and mechanical symptoms such as locking or catching in the affected joint.

Assign this code for patients diagnosed with osteochondritis dissecans specifically affecting the right ankle or any other joint within the right foot. Documentation should clearly specify the diagnosis and laterality (right side) of the affected joint(s).

• Ensure documentation specifies "right" ankle or foot joints; do not use for left or bilateral involvement.
• Distinguish from other osteochondral lesions or fractures, which have different codes.
• Consider sequencing with codes for associated symptoms (e.g., pain, swelling) if applicable, following official coding guidelines.