If functioning at the pink box under 574 (Cholelithiasis), we read that marilyn and i use the 5th digit 0 for "without mention of obstruction" and also the 5th digit 1 for "with impediment." Because the question mentions "with obstruction," we immediately have two "wrong, wrong, dead wrong" answers – Answers A and D, which own the 5th digit…[Read more]