Displaced comminuted fx shaft of humerus, unsp arm, init

This code describes a severe break in the main part of the upper arm bone (humerus) that has shattered into multiple pieces and is out of alignment. The specific arm affected is not documented, and the fracture is being treated for the first time without an open wound.

Use this code for a patient presenting with a newly diagnosed, comminuted, and displaced fracture of the humeral shaft where the medical record does not specify whether it's the left or right arm. This applies to closed fractures in their initial phase of treatment.

• Ensure documentation explicitly states "comminuted" and "displaced" for the humeral shaft.
• Only use the "unspecified arm" option if laterality (left/right) is truly unstated in the medical record.
• The "A" seventh character indicates the initial encounter for active treatment of a closed fracture.