Other fracture of shaft of unspecified femur, sequela

This code signifies a long-term complication or late effect resulting from a fracture of the femoral shaft, where the specific location on the shaft is not documented. It indicates that the initial acute injury has healed, but the patient is now experiencing residual issues directly attributable to that past fracture. These sequelae can include chronic pain, malunion, nonunion, limb length discrepancy, or functional limitations.

Apply this code when documenting a patient presenting with a current condition that is a direct consequence of a previously sustained and healed fracture of the femoral shaft. This is appropriate for follow-up encounters addressing chronic issues related to the old injury, such as ongoing pain, deformity, or impaired mobility. It should be used after the acute phase of the original fracture has passed.

• Always assign this code as a secondary diagnosis, with the primary diagnosis describing the specific sequela (e.g., M84.459A for malunion of unspecified femur).
• Ensure documentation clearly links the current condition to the prior femoral shaft fracture.
• Do not use this code for acute or subacute fractures; it is exclusively for late effects.