What is it?
Box 10d is used to identify additional information about the patient’s condition or the claim. When required by payers, enter the Condition Code in this field. The Condition Codes approved for use on the 1500 Claim Form are available at www.nucc.org under Code Sets.
If a payer requires this field, you will need open a PDF/Large Form version of the CMS-1500 and manually enter the information.