Displaced avulsion fracture of unspecified ilium, sequela

This code signifies a fracture where a small piece of bone has been pulled away from the main bone by a tendon or ligament, specifically involving an unspecified part of the ilium. The fracture is displaced, meaning the bone fragments are not in their normal alignment. The "S" at the end indicates that this code is for a sequela, meaning it's used for complications or conditions arising as a direct result of the initial injury, after the acute phase of healing has passed.

Use this code when documenting a long-term complication or residual effect of a previously sustained displaced avulsion fracture of the ilium. This would apply to follow-up encounters for chronic pain, nonunion, malunion, or other persistent issues directly attributable to the original injury. It is appropriate for encounters occurring after the initial healing period.

• Always use this code as a secondary diagnosis, following a code that describes the specific sequela (e.g., chronic pain, nonunion).
• Ensure documentation clearly states the fracture is an avulsion type, displaced, and involves the ilium.
• Verify that the encounter is for a late effect or complication of the fracture, not the initial treatment.