Unilateral osteoarth resulting from hip dysplasia, right hip

This code signifies osteoarthritis affecting the right hip, specifically when the degenerative joint disease is a direct consequence of pre-existing hip dysplasia. This condition involves the abnormal formation of the hip joint, leading to premature wear and tear of the articular cartilage.

Apply this code when documentation clearly states unilateral osteoarthritis of the right hip and explicitly links its etiology to hip dysplasia. This typically occurs in patients with a history of congenital or developmental hip abnormalities. Supporting documentation would include imaging reports confirming osteoarthritis and a history of hip dysplasia.

• Ensure the documentation specifies "right hip" and explicitly states the osteoarthritis is "due to" or "resulting from" hip dysplasia.
• Do not use this code for bilateral involvement; separate codes exist for bilateral or unspecified laterality.
• Distinguish from primary osteoarthritis (M16.1-) or post-traumatic osteoarthritis (M16.4-), which have different etiologies.