Medical Coding

Answer: B - 45114 is correct because this is the code for a partial proctectomy with anastomosis using both the abdominal and transsacral approach.
Code 45113 is incorrect because this is a partial proctectomy with rectal mucosectomy, ileoanal anastomosis, creation of ileal reservoir with or without loop ileostomy. Code 45116 is incorrect because this is a partial proctectomy with anastomosis using only the transsacral approach. Code 45123 is incorrect because this is a partial proctectomy without anastomosis using the perineal approach.