Displ commnt fx shaft of humer, unsp arm, 7thK

This code signifies a complex break in the main part of the upper arm bone (humerus) that has shattered into multiple pieces and is no longer in its proper alignment. Furthermore, this specific encounter addresses a complication where the bone fragments have failed to heal together after an initial treatment, indicating a nonunion.

Apply this code when a patient presents for follow-up care of a previously treated comminuted humeral shaft fracture, and imaging or clinical assessment confirms that the fracture has not united. This would include scenarios such as surgical intervention for nonunion, cast changes, or evaluation of ongoing nonunion management.

• Ensure documentation clearly specifies "nonunion" as the reason for the subsequent encounter, not just delayed healing.
• Verify laterality (left, right, or unspecified) is consistent with the patient's record.
• Confirm the fracture type is comminuted and located in the shaft of the humerus.