Displaced transverse fx shaft of humerus, unsp arm, sequela

This code signifies a past injury involving a break across the shaft of the humerus bone, which was displaced at the time of the fracture. The specific arm affected is not documented, and the code indicates that this fracture is now causing a long-term complication or residual effect.

Apply this code when a patient presents with a current condition or symptom that is a direct result of a previously sustained displaced transverse fracture of the humeral shaft. This is appropriate for chronic pain, limited range of motion, nonunion, malunion, or other late effects directly attributable to the original injury.

• Always sequence this code after the code for the specific sequela being treated (e.g., M25.51_ for chronic shoulder pain).
• Ensure documentation clearly links the current condition to the old humeral shaft fracture.
• Confirm that the original fracture was indeed displaced and transverse, and that the arm was unspecified if no laterality is documented.