Displ commnt fx unsp patella, init for opn fx type 3A/B/C

This code signifies a severe, multi-fragmented break of the kneecap where the bone pieces are not in their normal alignment. It specifically indicates an open fracture, meaning the bone has broken through the skin, and is classified as a high-energy injury (Type IIIA, IIIB, or IIIC) with significant soft tissue damage. This is the initial encounter for treatment of this specific injury.

Use this code for a patient presenting for the first time with a comminuted patellar fracture that is visibly open to the environment. This applies when the physician documents a Gustilo-Anderson classification of IIIA, IIIB, or IIIC, indicating extensive soft tissue involvement and potential contamination. This code is appropriate for the initial surgical repair or management of such a complex injury.

• Ensure documentation clearly specifies "displaced" and "comminuted" for the patella.
• Verify the Gustilo-Anderson classification (IIIA, IIIB, or IIIC) is explicitly stated for the open fracture.
• Confirm this is the patient's initial encounter for this specific fracture, not a follow-up or subsequent care.