Final answer:
The National Drug Code (NDC) is typically NOT allowed on CMS-1500 claim forms unless specifically required for certain medication-related claims. Conversely, a provider's signature, patient's date of birth, and billing provider NPI are standard required fields.
Step-by-step explanation:
The question is regarding what is NOT typically allowed on CMS-1500 claim forms unless otherwise instructed. The CMS-1500 form is used by healthcare providers to submit insurance claims to Medicare and other health insurance companies. When completing a CMS-1500 claim form, specific instructions are provided on what pieces of information are mandatory and what are conditional or not typically required.
The Provider Signature is mandatory and is not subject to being left out unless specifically instructed. The Patient's Date of Birth is essential information for patient identification and is always required. The Billing Provider NPI (National Provider Identifier) is a unique identifier for the billing provider and must be included on the form.
The National Drug Code (NDC) is not a standard requirement on the CMS-1500 form but may be required for certain claims involving specific medications or treatment scenarios. Therefore, answer D) National Drug Code (NDC) is typically NOT ALLOWED on CMS-1500 claim forms, unless instructed to provide this information.