Displ commnt fx unsp patella, subs for clos fx w delay heal

This code signifies a comminuted fracture of the patella (kneecap) that is out of anatomical alignment. It indicates that the patient is in a later stage of care for this specific injury, and the fracture is not healing as expected, despite the fracture site being non-surgically exposed.

This code is appropriate for follow-up encounters where a patient with a previously diagnosed displaced comminuted patellar fracture is experiencing delayed healing. It should be used when the fracture has been managed non-operatively or the surgical site is closed, and the provider documents persistent non-union or slow callus formation.

• Ensure documentation explicitly states "delayed healing" for a closed fracture.
• Verify the fracture is indeed comminuted and displaced, and the patella is unspecified.
• This code requires a 7th character for the encounter type; "G" indicates subsequent encounter for closed fracture with delayed healing.