Unsp fx head of left femur, subs for clos fx w nonunion

This code signifies a fracture of the top portion of the left thigh bone (femur) that has not healed properly after an initial injury. The fracture is not specified further regarding its type (e.g., transverse, oblique), and the skin over the fracture site remains intact.

This code is appropriate for follow-up encounters where a patient is being treated for a previously diagnosed closed fracture of the left femoral head that has failed to unite. This includes situations where the patient is undergoing continued conservative management, surgical intervention for nonunion, or evaluation of the nonunion.

• Ensure documentation clearly states "nonunion" and specifies the left side.
• Verify the encounter is for follow-up care of the closed fracture, not the initial treatment.
• Do not use if the fracture is explicitly described as a specific type (e.g., Salter-Harris, intracapsular); a more specific code would be required.