Unilateral primary osteoarthritis, right hip

This code signifies degenerative joint disease affecting the right hip, characterized by cartilage breakdown and bone changes, without a known underlying cause. It specifically indicates that only the right hip is affected by this primary form of osteoarthritis.

Apply this code when documentation clearly states a diagnosis of primary osteoarthritis localized to the right hip. Supporting documentation typically includes physician notes detailing symptoms like pain, stiffness, and limited range of motion in the right hip, along with imaging findings consistent with osteoarthritis.

• Ensure laterality is explicitly documented as "right hip" and that the osteoarthritis is specified as "primary" or "idiopathic."
• Do not use this code if the osteoarthritis is secondary to trauma, infection, or another underlying condition; instead, refer to the appropriate secondary osteoarthritis codes.
• Distinguish from M16.0 (Bilateral primary osteoarthritis of hip) when only one hip is affected.