Oth fracture of left ischium, subs for fx w nonunion

This code signifies a fracture of the left ischium that is not otherwise specified, meaning it doesn't fit into more precise categories. The "subsequent encounter" indicates the patient is receiving follow-up care for this fracture, and the "nonunion" specifies that the bone fragments have failed to heal together after a reasonable period.

Apply this code when a patient presents for ongoing treatment of a left ischial fracture that has not healed properly. This would include situations where surgical intervention for nonunion is being planned or performed, or when conservative management for a non-healing fracture is continuing. It's used after the initial treatment of the fracture.

• Ensure documentation clearly states "left ischium" and "nonunion" for accurate code assignment.
• Confirm this is a subsequent encounter, not the initial treatment of the fracture.
• Look for documentation of failed healing, such as persistent pain, instability, or radiographic evidence of nonunion.