Nondisp oblique fx shaft of l ulna, 7thM

This code describes a situation where a patient has a non-displaced oblique fracture in the shaft of their left ulna. Crucially, this fracture was initially an open fracture of type I or II, and the current encounter is for the ongoing management of a nonunion, meaning the bone is failing to heal properly.

This code is used when a patient with a previously diagnosed open oblique fracture of the left ulnar shaft (Type I or II) presents for follow-up care or treatment related to the fact that the fracture has not healed as expected. This would include visits for assessment, further imaging, or interventions aimed at promoting union.

• Ensure documentation clearly specifies "nonunion" and the "subsequent encounter" for this specific fracture type.
• Verify the original fracture was an "open fracture type I or II" as this impacts code selection.
• Confirm the fracture is of the "shaft" of the "left ulna" and is "nondisplaced" and "oblique."