Displ seg fx shaft of ulna, l arm, 7thM

This code describes a specific type of fracture affecting the shaft of the ulna in the left arm, characterized by a break in multiple segments that are no longer properly aligned. It indicates that the patient is in a later stage of care for an open fracture (where the bone broke through the skin) classified as Type I or II, and the fracture is failing to heal properly (nonunion).

This code is appropriate for documenting follow-up care for a patient with a previously diagnosed left ulnar shaft fracture that was initially open (Type I or II) and is now exhibiting nonunion. It would be used when the patient presents for ongoing treatment, evaluation, or management of this specific complication.

• Ensure documentation clearly specifies "left arm" and "ulna shaft" to differentiate from other forearm fractures.
• Verify the original fracture was an "open fracture type I or II" and that "nonunion" is explicitly documented.
• Confirm this is a "subsequent encounter" for care related to the healing process or complications, not the initial treatment.