Final answer:
The date to enter in Block 14 of the CMS-1500 claim for Jean Mandel would be May 5, YYYY.
Step-by-step explanation:
To determine what to enter in Block 14 of the CMS-1500 claim for Jean Mandel, we need to establish the date she first experienced signs or symptoms of her illness or injury. In this case, the provider has documented that her pain began five days ago. With today's date being May 10, YYYY, we can subtract five days to find the date Jean Mandel first experienced symptoms. Therefore, the date to enter in Block 14 would be May 5, YYYY.