Nondisp segmental fracture of shaft of ulna, unsp arm, init

This code signifies a fracture of the ulna bone in the forearm that is broken in at least two places (segmental) but the bone fragments remain in their normal anatomical alignment (nondisplaced). The specific arm affected is not documented, and the skin over the fracture remains intact (closed).

Apply this code for the initial treatment of a patient presenting with a newly diagnosed, nondisplaced segmental fracture of the ulnar shaft where the affected arm is not specified. This typically occurs after initial imaging confirms the fracture characteristics and before definitive treatment or follow-up care.

• Ensure documentation explicitly states "nondisplaced" and "segmental" for the ulnar shaft fracture.
• Only use the "A" (initial encounter) seventh character for the first time the patient is seen for this specific injury.
• If the affected arm (left or right) is known, a more specific code should be selected.