Final answer:
Type of accident information is reported on the CMS-1500 form in fields 10a-10c, indicating if services are related to employment, auto accident, or other types of accidents.
Step-by-step explanation:
The type of accident information on the CMS-1500 form is indicated in the designated fields numbered 10a through 10c. These fields are specifically for reporting whether the medical service is related to employment, auto accident, or other accident. Health care providers must accurately report the type of accident to ensure that the claim is processed correctly by the insurance payer. For instance, if the service is related to an auto accident, field 10b should be marked appropriately. This information is crucial as it influences how insurance companies coordinate benefits and determines liability.