Unsp fx unsp patella, subs for opn fx type I/2 w delay heal

This code describes a follow-up encounter for a patellar fracture that was not specified as displaced or non-displaced, and the initial injury involved an open fracture of Gustilo type I or II. The patient is experiencing delayed healing of this open patellar fracture.

Use this code when a patient presents for ongoing management of an open patella fracture (Gustilo type I or II) that is not healing as expected. This applies to subsequent visits after the initial treatment, where the specific displacement of the fracture was not documented.

• Ensure documentation clearly states "delayed healing" and specifies an open fracture type I or II.
• Verify that the encounter is for follow-up care, not the initial treatment of the fracture.
• Confirm that the patella fracture type (displaced/non-displaced) was not specified in the medical record.