Displaced avulsion fx left ilium, subs for fx w nonunion

This code describes a specific type of pelvic fracture where a fragment of the left ilium has been pulled away from the main bone by a ligament or tendon, and this fragment is no longer in its correct anatomical position. The "subsequent encounter" indicates that the patient is receiving follow-up care for this fracture, and "nonunion" signifies that the bone fragments have failed to heal together after a reasonable period.

Use this code for patients presenting for ongoing treatment, such as cast changes, physical therapy, or surgical planning, for a previously diagnosed displaced avulsion fracture of the left ilium. This code is specifically appropriate when documentation confirms that the fracture has not united.

• Ensure documentation clearly specifies "left" ilium and "displaced" avulsion fracture.
• Verify that the encounter is for follow-up care and not the initial treatment.
• Confirm the presence of "nonunion" as documented by the physician.