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Medical Billing
Prior Authorization
An insurer's advance approval required before certain treatments or imaging will be covered — a common source of denials when skipped.
Related terms
Claim Denial
An insurer's refusal to pay a submitted claim, often over missing documentation, coding errors, or lack of prior authorization.
Read definitionExplanation of Benefits
EOBA statement from an insurer showing what was billed, what was allowed, what was paid, and what the patient may owe.
Read definitionCPT Code
A five-digit code from the Current Procedural Terminology set that identifies a specific medical service or procedure for billing.
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