Nondisp commnt fx shaft of ulna, unsp arm, 7thJ

This code signifies a non-displaced fracture of the ulna shaft that has broken into multiple fragments, where the specific arm (left or right) is not documented. It indicates that the fracture was initially an open fracture of a severe type (IIIA, IIIB, or IIIC) and is currently in a phase of delayed healing during a subsequent encounter.

This code is appropriate for follow-up encounters where a patient is receiving ongoing treatment for a previously sustained, severe open comminuted ulna shaft fracture. It should be used when the arm laterality is not specified in the medical record and the healing process is progressing slower than expected.

• Ensure documentation clearly states "nondisplaced," "comminuted," and "delayed healing" for the ulna shaft fracture.
• Verify the initial injury was classified as an open fracture type IIIA, IIIB, or IIIC.
• Only use this code for subsequent encounters; an initial encounter would use a different seventh character.