Nondisp dome fx left acetabulum, subs for fx w nonunion

This code signifies a fracture of the dome of the left acetabulum that is not displaced, meaning the bone fragments remain in their normal anatomical position. The "subsequent encounter" indicates the patient is receiving follow-up care for this fracture, and the "nonunion" specifies that the bone has failed to heal properly after a typical healing period.

Apply this code when documenting ongoing treatment for a previously diagnosed nondisplaced dome fracture of the left acetabulum where the fracture has not united. This would be appropriate for patients undergoing further interventions, such as bone grafting or revision surgery, due to the nonunion. It is also used for follow-up appointments monitoring the nonunion.

• Ensure documentation clearly states "nondisplaced" and specifies the "left" acetabulum.
• Confirm the encounter is for follow-up care of the fracture, not the initial treatment.
• Verify the physician's assessment explicitly states "nonunion" of the fracture.