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

This code describes a situation where a patient has a non-displaced fracture in the middle section of the ulna bone, which is part of the forearm. The fracture is segmental, meaning there are at least two fracture lines creating a free segment of bone. This specific encounter is for an open fracture (where the bone broke through the skin) of a severe type (IIIA, IIIB, or IIIC) that has not healed properly (nonunion).

Use this code for follow-up encounters when a patient's previously treated open segmental shaft fracture of the ulna (unspecified arm) has failed to unite. This applies to ongoing management, assessment, or treatment of the nonunion, specifically for severe open fractures. It indicates that the initial injury was an open fracture and that healing complications persist.

• Ensure documentation clearly specifies "nonunion" and the original fracture was an "open fracture type IIIA, IIIB, or IIIC."
• Verify the fracture is "nondisplaced" and "segmental" to accurately apply this code.
• This code is for subsequent encounters; an initial encounter for the fracture would use a different code.