Displ oblique fx shaft of unsp ulna, 7thR

This code describes a situation where a patient has a malunion of a previously sustained oblique fracture in the shaft of an unspecified ulna. This malunion occurred following an open fracture classified as type IIIA, IIIB, or IIIC, indicating significant soft tissue damage and contamination. The current encounter is for follow-up care related to this healing complication.

Use this code for subsequent encounters when a patient presents with a malunion of an open oblique ulnar shaft fracture that was initially classified as Gustilo-Anderson type IIIA, IIIB, or IIIC. This applies when the fracture has healed in a misaligned position, requiring ongoing management or evaluation.

• Ensure documentation clearly specifies "malunion" and the Gustilo-Anderson classification (IIIA, IIIB, or IIIC) of the original open fracture.
• Verify that the encounter is for follow-up care of the malunion, not the initial treatment of the fracture.
• Confirm the fracture location is the shaft of the ulna and the fracture pattern is oblique.