Unsp fx shaft of right femur, subs for clos fx w nonunion

This code indicates a right femoral shaft fracture, where the specific location along the shaft is not documented, and the fracture has failed to heal properly after initial treatment. This represents a complication of a previously treated closed fracture, now requiring further management due to nonunion.

Use this code when a patient presents for follow-up care of a right femoral shaft fracture that was initially treated as a closed fracture, but imaging or clinical assessment confirms that the bone fragments have not united. This applies to subsequent encounters where the nonunion is being addressed, such as for surgical intervention, cast changes, or ongoing monitoring.

• Ensure documentation clearly states "nonunion" and specifies the right femur shaft.
• Verify the encounter is for subsequent care, not the initial treatment of the fracture.
• Confirm the original fracture was closed; open fractures have different coding pathways.