4-part fx surg neck of l humerus, subs for fx w delay heal

This code describes a complex fracture involving four distinct fragments of the surgical neck of the left humerus. It specifically indicates that the patient is in a later stage of care, experiencing a slower-than-expected healing process for this particular fracture.

Apply this code for follow-up encounters where a patient with a previously diagnosed 4-part surgical neck fracture of the left humerus is being monitored for delayed union or nonunion. This would include appointments for imaging, physical therapy, or re-evaluation of the healing progress when it is not proceeding as anticipated.

• Ensure documentation clearly specifies a 4-part fracture and the left side.
• Verify that the encounter is for follow-up care related to the fracture's healing, not initial treatment or routine follow-up without healing complications.
• Always sequence this code as a secondary diagnosis if the primary reason for the encounter is treatment of a complication directly related to the delayed healing.