The NUCC's goal in developing the 1500 Claim Form Reference Instruction Manual is to help standardize nationally the manner in which the form is completed. We do recognize, however, that some payers will give their providers different instructions on how to complete certain Item Numbers on the form. On the title page of the instruction manual, it states:
The NUCC has developed this general instructions document for completing the 1500 Health Insurance Claim Form. This document is intended to be a guide for completing the 1500 Claim Form and not definitive instructions for this purpose. Any user of this document should refer to the most current federal, state, or other payer instructions for specific requirements applicable to using the 1500 Claim Form.