Nondisp fx of olecran pro w/o intartic extn unsp ulna, 7thN

This code signifies a non-displaced fracture of the olecranon process (the bony prominence at the tip of the elbow) of an unspecified ulna, where the fracture does not extend into the joint. Crucially, it indicates a subsequent encounter for an open fracture (types IIIA, IIIB, or IIIC) that has failed to heal properly, resulting in a nonunion.

Apply this code when documenting follow-up care for a patient previously treated for a severe open olecranon fracture that is now complicated by nonunion. This would include scenarios where the patient is undergoing further surgical intervention, casting, or other treatments specifically for the unhealed fracture.

• Ensure documentation clearly specifies "nonunion" and the original open fracture type (IIIA, IIIB, or IIIC).
• Verify that the fracture is indeed "nondisplaced" and "without intraarticular extension."
• This code is for subsequent encounters; an initial encounter for the same fracture would use a different code.