> ## Documentation Index
> Fetch the complete documentation index at: https://docs.medera.info/llms.txt
> Use this file to discover all available pages before exploring further.

# Payer Policy Expert

> Carrier-specific PA rules and coverage criteria

Looks up payer-specific prior authorization rules and coverage criteria.

**Inputs:** payer ID, service code(s)
**Outputs:** PA requirement, coverage criteria, evidence requirements, formulary