When a scheduled surgery is canceled, what is the first listed diagnosis?

• A. Reason for the surgery
• B. Preoperative diagnosis
• C. Postoperative diagnosis
• D. Administrative cancellation reason

Answer: (A)

The main idea is that the first listed diagnosis for a scheduled surgery is the reason the procedure was planned—the condition that would justify performing the operation. Even if the surgery is canceled, the documentation still centers on the medical indication for surgery, so that diagnosis remains the primary entry. The preoperative diagnosis is closely related, as it identifies the condition before surgery, but the emphasis here is on the indication for the procedure itself. A postoperative diagnosis wouldn’t apply because the operation didn’t occur, and an administrative cancellation reason is not a medical diagnosis. For example, if gallstones were the reason for a planned cholecystectomy, the first-listed diagnosis would be gallstones, even though the surgery was canceled.