4-part fx surg neck of unsp humer, subs for fx w delay heal

This code signifies a complex fracture involving four distinct fragments of the surgical neck of the humerus, where the specific side (left or right) is not documented. It indicates that the patient is in a later stage of care for this injury, specifically experiencing a delay in the expected healing process.

This code is appropriate for follow-up encounters where a patient with a previously diagnosed 4-part surgical neck humerus fracture (unspecified side) is being managed for delayed union or nonunion. It should be used when the fracture has not healed within the anticipated timeframe and further intervention or monitoring is required.

• Ensure documentation clearly states "delayed healing" or similar terminology for this specific fracture.
• Confirm the fracture is explicitly described as a "4-part" fracture of the surgical neck.
• Verify that the laterality of the humerus is not specified in the clinical record.