Post-traumatic osteoarthritis, unspecified ankle and foot

This code signifies degenerative joint disease in the ankle or foot that develops as a direct consequence of a prior injury to the affected joint. It represents a chronic condition characterized by cartilage breakdown, pain, and stiffness, specifically linked to a traumatic event.

Apply this code when documentation clearly states osteoarthritis of the ankle or foot is post-traumatic in origin, but the specific ankle (right or left) or foot is not specified. This is appropriate for patients presenting with chronic joint pain and radiographic evidence of osteoarthritis following a documented ankle or foot fracture, sprain, or other injury.

• Ensure the medical record explicitly links the osteoarthritis to a previous trauma.
• Avoid using this code if the laterality (right or left) of the affected ankle or foot is documented; instead, use the more specific codes.
• Do not use for primary osteoarthritis or osteoarthritis due to other causes (e.g., inflammatory arthritis).