Contracture, left knee

This code signifies a fixed resistance to passive stretch of the left knee joint, resulting in a limitation of its range of motion. This can involve shortening of muscles, tendons, ligaments, or joint capsule, preventing full extension or flexion.

Apply this code when documentation clearly indicates a contracture affecting the left knee. This is typically supported by physical examination findings noting decreased active and passive range of motion, often with a specific goniometric measurement.

• Specify laterality (left vs. right) as contractures are often unilateral.
• Distinguish from stiffness (R25.8) or pain (M25.562) without a fixed limitation of movement.
• Code any underlying cause of the contracture (e.g., M06.9 for rheumatoid arthritis) as an additional diagnosis.