Unsp fracture of unsp ischium, subs for fx w nonunion

This code signifies an unspecified fracture of the ischium, a bone in the pelvis, that has not healed properly and is being treated in a subsequent encounter. Nonunion indicates that the bone fragments have failed to unite after a sufficient healing period, requiring further medical intervention.

Use this code when a patient presents for ongoing management of an ischial fracture that has been previously diagnosed and is now complicated by nonunion. This applies to follow-up visits, surgical interventions for nonunion, or other treatments aimed at promoting healing of the ununited fracture.

• Ensure documentation clearly states "nonunion" of the ischial fracture and that this is a subsequent encounter.
• Do not use this code for initial fracture treatment or for fractures that are healing normally.
• Confirm the laterality of the ischium is truly unspecified if not documented; otherwise, use a more specific code.