Question: Texas Subscriber Answer: Under these circumstances, some Medicare payers may require unlisted code 99499 (Unlisted evaluation and management service) and request to see all of your physician's documentation. Other Medicare payers and commercial and private insurers might allow you use 99307 (Subsequent nursing facility care per day, for the evaluation and management of a patient ...) as you suggested. For example, the WPS Medicare website states that you can bill a subsequent nursing facility code "if documentation and medical necessity do not meet the requirement for billing an initial nursing facility care code."