Disp fx of coronoid pro of unsp ulna, 7thM

This code signifies a displaced fracture of the coronoid process, a small bony projection on the ulna, where the specific arm (left or right) is not documented. The fracture is currently in a subsequent encounter phase, meaning the initial treatment has occurred, and the patient is now being seen for ongoing management of a nonunion, specifically for an open fracture initially classified as Type I or Type II.

Use this code when a patient presents for follow-up care of a previously diagnosed open coronoid process fracture (Type I or II) that has failed to heal properly, and the laterality of the ulna was not specified in the medical record. This applies to situations where the fracture fragments are not in their anatomical alignment.

• Ensure documentation clearly states "nonunion" and specifies the initial fracture as an open Type I or II.
• Verify that the encounter is for subsequent care, not initial treatment.
• Only use this code when the laterality (left or right ulna) is explicitly unstated in the medical record.