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Prior-Auth Agent

CMS-0057-F is a deadline, not a project

Prior authorization is the most hated workflow in healthcare — and by January 1, 2027 impacted payers must run it over a FHIR PARDD API. The Prior-Auth Agent automates the whole loop: check requirements, gather documentation, submit, and handle the decision, bridging X12 278 ↔ FHIR so nothing in your stack breaks.

  • CMS-0057-F PARDD API + Da Vinci PAS / CRD / DTR
  • X12 278 ↔ FHIR R4, bidirectional
  • Auto-assembled documentation, tracked decision clocks
For payers

The PARDD loop

  1. 1
    CRD

    Is prior auth required?

  2. 2
    DTR

    Gather the documentation

  3. 3
    PAS

    Submit over PARDD

  4. 4
    Decision

    Approve · pend · deny + reason

Decision clock: 72 hrs expedited · 7 days standard

In short

The Prior-Auth Agent runs end-to-end electronic prior authorization on the CMS-0057-F Prior Authorization (PARDD) API using Da Vinci PAS / CRD / DTR. It discovers whether prior auth is required, assembles the documentation automatically, submits the request while bridging X12 278 ↔ FHIR, and handles the decision — tracking the CMS timeframes (72 hours expedited, 7 calendar days standard) and parsing denial reasons into appealable form. Required for impacted payers by January 1, 2027.
Jan 1 2027
PARDD API required
operational provisions in 2026
72 hrs
Expedited decision
7 days standard
278 ↔ FHIR
Bidirectional bridge
keep your EDI stack
~43%
Payers not started
WEDI, Oct 2025
The PARDD loop

Four steps, fully automated

The Da Vinci prior-authorization loop — CRD → DTR → PAS → decision — run end to end by the agent, with a human confirming only what the payer rules genuinely require.

  1. 1

    1 · Is PA required? (CRD)

    At the point of order, Da Vinci Coverage Requirements Discovery queries the payer and returns whether prior authorization is required — and the rules behind the answer — before the clinician moves on.

  2. 2

    2 · Gather documentation (DTR)

    Documentation Templates & Rules pulls the payer's questionnaire, auto-answers it from the EHR/FHIR record (CQL), and flags only the gaps a human must fill — no re-keying.

  3. 3

    3 · Submit (PAS)

    The Prior Authorization Support transaction submits the request over the PARDD API, bridging X12 278 ↔ FHIR so both the payer's EDI stack and modern FHIR clients stay in sync.

  4. 4

    4 · Decision & follow-up

    Approvals, pended status and denials return with structured reasons. The agent tracks the CMS decision clock, parses denial reasons, and drafts the appeal or resubmission automatically.

Capabilities

What the Prior-Auth Agent handles

Everything from coverage discovery to appeal drafting — on standards, with a full audit trail.

CMS-0057-F PARDD API

Native support for the Prior Authorization API (PARDD) that impacted payers must operate under the CMS Interoperability and Prior Authorization final rule.

Da Vinci PAS / CRD / DTR

The full FHIR prior-auth stack — Coverage Requirements Discovery, Documentation Templates & Rules, and Prior Authorization Support — wired together end to end.

X12 278 ↔ FHIR bridging

Translate bidirectionally between the legacy X12 278 request/response and FHIR R4, so payers can modernize without abandoning their EDI backbone.

Automated documentation assembly

Auto-answer DTR questionnaires from the clinical record with CQL, attach supporting documents, and surface only the fields a human actually needs to complete.

Decision-clock tracking

Monitor the CMS-mandated timeframes — 72 hours for expedited requests, 7 calendar days for standard — and alert before a payer misses them.

Denial handling & appeals

Parse structured denial reasons, explain them in plain English, and draft the appeal or corrected resubmission automatically.

The 2027 clock is already running

CMS-0057-F requires four FHIR APIs — Patient Access, Provider Access, Payer-to-Payer, and Prior Authorization (PARDD) — with operational provisions in 2026 and the APIs due January 1, 2027. Yet roughly 43% of payers and 47% of providers had not started as of October 2025. Read the full breakdown of what the rule requires and how to sequence it.

Security & Compliance

Enterprise-grade trust, stated honestly

Protecting PHI is non-negotiable. Here's exactly where our certifications stand — no overclaiming.

HIPAAActive

Compliant · BAAs available

SOC 2 Type IIIn Progress

Audit in progress

HITRUST CSFOn Roadmap

On roadmap

HL7 · FHIRCore

Native, by design

AWS HIPAA-eligible infrastructure · Business Associate Agreements (BAAs) · Encryption in transit & at rest · See our security details →

Frequently asked questions

Ready for the CMS-0057-F prior-auth deadline?

See the PARDD loop run on a real prior-authorization scenario, with X12 278 ↔ FHIR bridging on your own transactions.

Solutions for payers