Ankylosis, right hip

This code signifies the pathological stiffening and immobility of the right hip joint due to fusion of the bones. This condition results in significant restriction of range of motion and functional impairment.

Apply this code for patients diagnosed with a fixed, immobile right hip joint, often a sequela of severe arthritis, trauma, or inflammatory conditions. Documentation should clearly state "ankylosis" or "fusion" of the right hip, indicating a complete loss of joint movement.

• Ensure laterality is clearly documented as "right hip" to avoid incorrect coding.
• Distinguish from arthrodesis (surgical fusion), which has a separate code.
• Look for underlying causes (e.g., osteoarthritis, rheumatoid arthritis) to code as secondary diagnoses.