Contracture, unspecified knee

This code signifies a pathological shortening of the soft tissues around the knee joint, leading to a restriction in its range of motion. This limitation can affect flexion, extension, or both, and is not specified as to its underlying cause. It represents a fixed resistance to passive stretch of the knee.

Apply this code when documentation indicates a contracture of the knee, but the specific type or cause (e.g., arthrogenic, myopathic, neurogenic) is not identified. This is appropriate when the physician notes "knee contracture" without further elaboration on the etiology or specific joint compartment affected.

• Avoid using this code if the specific type of contracture (e.g., due to scar, muscle, or joint capsule) is documented; instead, use a more specific code.
• Ensure documentation clearly states "contracture" of the knee; do not use for general stiffness or limited range of motion without a definitive contracture diagnosis.
• Always sequence this code after any underlying or causative condition, if known and documented.