Nondisp segmental fx shaft of humerus, unsp arm, init

This code signifies a fracture occurring in the middle portion (shaft) of the humerus, where the bone is broken into at least three pieces (segmental) but the bone fragments remain in their normal anatomical alignment (nondisplaced). The specific arm affected is not documented, and this code is used for the initial treatment of a closed fracture, meaning the skin is intact over the fracture site.

Apply this code when documentation confirms a segmental fracture of the humeral shaft without displacement, and the affected arm is not specified (e.g., "segmental humeral shaft fracture"). This is appropriate for the initial encounter for definitive treatment of a closed fracture, such as casting or splinting.

• Ensure documentation explicitly states "segmental" and "nondisplaced" for the humeral shaft.
• Only use the "unspecified arm" designation when laterality cannot be determined from the medical record.
• Reserve the "A" seventh character for the initial treatment of the fracture.