Closed fracture of patella

This code signifies a break in the kneecap (patella) where the skin remains intact over the fracture site. It indicates a non-open fracture, meaning there is no communication between the fracture and the external environment. This injury typically results from direct trauma to the knee or forceful contraction of the quadriceps muscle.

Apply this code when documentation clearly states a "closed patellar fracture" or "nondisplaced patella fracture" without any mention of an open wound. It is appropriate for initial encounters for acute injuries. Ensure the physician's notes confirm the absence of skin laceration or penetration at the fracture site.

• Differentiate carefully from open patellar fractures, which require a different code.
• Do not use for pathological fractures of the patella; these have specific codes.
• Always review documentation for laterality (left, right, or unspecified) if available, though this specific code does not differentiate.