| A - D |
| Ancillary Service | Adjacent to, or in addition to your visit or medical service; anesthesia, laboratory, radiology, etc. |
| Adjudication | Payment of a claim according to benefits. |
| Bill | Charges for a specific visit. |
| Claim | A detail coded bill sent to the patient's insurance company. |
| Co-Pay | Amount designated by the insurance company as the responsibility of the insured, usually per visit. |
| Co-Insurance | A percentage for the total approved amount on an insurance claim. |
| Coordination of Benefits (COB) | Rules that determine which insurance is to be billed first (primary) for services when patient is covered by more than one carrier. State and Federal guidelines apply. |
| Deductible | An amount designated by the insurance company as the patient's responsibility. |
| Demographics | Address information of the patient. |
| DME | Durable medical equipment |