Oth fx shaft of unsp femr, 7thN

This code describes a situation where a patient has an unhealed fracture (nonunion) of the shaft of an unspecified femur, which was initially an open fracture of a severe type (IIIA, IIIB, or IIIC). The "subsequent encounter" indicates that the patient is receiving follow-up care for this ongoing fracture.

This code is appropriate for documenting follow-up visits or ongoing treatment for a patient whose severe open femoral shaft fracture has failed to heal properly. It should be used when the specific side (left or right) of the femur is not documented. This code is used when the patient is beyond the initial healing phase and is being managed for the nonunion.

• Ensure documentation clearly specifies "nonunion" and the initial open fracture type (IIIA, IIIB, or IIIC).
• Verify that the encounter is for follow-up care of the nonunion, not the initial treatment.
• Avoid using this code if the laterality of the femur is known; instead, select a more specific code for the left or right femur.