Nondisp seg fx shaft of ulna, unsp arm, 7thF

This code describes a specific type of ulna fracture: a nondisplaced segmental fracture of the shaft. It indicates that the fracture is healing routinely after an initial open fracture of type IIIA, IIIB, or IIIC. The "unspecified arm" designation means the laterality of the injury is not documented.

Use this code for follow-up encounters when a patient with a previously diagnosed open segmental ulna shaft fracture (Gustilo-Anderson type IIIA, IIIB, or IIIC) is demonstrating routine healing. This code is appropriate when the fracture is nondisplaced and the specific arm (left or right) is not documented in the medical record.

• Ensure documentation specifies "subsequent encounter" and "routine healing" for an open fracture.
• Verify the original fracture was an open segmental shaft fracture of the ulna, Gustilo-Anderson type IIIA, IIIB, or IIIC.
• Only use this code when laterality (left/right arm) is truly unspecified in the medical record.