Oth fracture of unsp ischium, subs for fx w nonunion

This code signifies a fracture of the ischium, the lower and back part of the hip bone, where the specific type of fracture is not further detailed. The "subsequent encounter" indicates that the patient is receiving follow-up care for this fracture, and "nonunion" means the bone fragments have failed to heal together after a reasonable period.

Use this code for patients presenting for ongoing management of an ischial fracture that has not healed. This includes situations where surgical intervention for nonunion is being planned or has already occurred, or when conservative management for nonunion is continuing. It is appropriate when the exact fracture pattern of the ischium is not specified in the documentation.

• Ensure documentation clearly states "nonunion" and that it is a subsequent encounter for the fracture.
• Verify that the fracture is indeed of the ischium and not another part of the pelvis.
• Do not use this code for initial encounters or for fractures that are healing normally.