Nondisp transverse fx shaft of humerus, unsp arm, init

This code signifies a break across the shaft of the humerus (the long bone of the upper arm) that has not shifted out of alignment. The fracture is located in the middle section of the bone, rather than at the ends, and the specific arm (left or right) is not documented.

Apply this code when documentation confirms a transverse fracture of the humeral shaft without displacement, and the patient is presenting for initial treatment of a closed injury. This is appropriate when the medical record does not specify which arm is affected.

• Ensure the documentation explicitly states "nondisplaced" and "transverse" for the shaft of the humerus.
• Only use this code when the laterality (left or right arm) is truly unspecified in the medical record.
• Confirm this is the initial encounter for a closed fracture; subsequent encounters or open fractures will require different codes.