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Signal Radar · SIG-2026-009

CMS sets a 2027 payer API deadline and phases hospital electronic prior-authorization reporting into 2028

Under CMS-0057-F, impacted payers have API compliance dates generally beginning January 1, 2027, including a Prior Authorization API for medical items and services (excluding drugs). Under the FY 2027 IPPS/LTCH PPS final rule, the Electronic Prior Authorization measure is an optional bonus measure for eligible hospitals and critical access hospitals in the CY 2027 EHR reporting period and becomes mandatory in CY 2028. CMS has proposed—not finalized—a similar CY 2027 optional/bonus and CY 2028 required schedule for MIPS-eligible clinicians.

Interoperability + Administrative AdoptionFinal payer and hospital/CAH policy; MIPS clinician changes proposed2026-08-04

Why it matters

Administrative interoperability is becoming an adoption constraint and infrastructure layer for healthcare products and care models, not merely a back-office optimization.

Decision implication

Include electronic-prior-authorization readiness in adoption diagnostics for technologies that depend on coverage of non-drug medical items or services; assess drug workflows separately because CMS's 2026 drug-related changes remain proposed.

Who or what is affected

  • CMS
  • hospitals
  • clinicians
  • payers
  • health IT vendors
  • EHRs

Evidence and sources

Decision priority: Watch

Source authority: Primary/authoritative · official CMS source

Evidence design: Program record

Applicability: Direct

Confidence for the stated claim: High

Freshness: Current

P4L distinguishes the sourced record from interpretation. Program inclusion, participation, funding, proposal status, or a public listing does not by itself establish clinical effectiveness, endorsement, coverage, or scaled adoption unless the cited source specifically establishes it.

For this decision

Health-system leaders · Payers/employers · Clinicians · Policymakers · Researchers

What P4L is watching next

  • 2027 bonus implementation
  • 2028 mandatory requirements
  • standards adoption.

Related proof records

None recorded.

Record provenance

Last verified
2026-09-03
Source updated
2026-08-04
Revision state
Version 1.1 corrects the observation date to August 4, 2026, separates final payer and hospital/CAH policy from proposed MIPS clinician changes, adds the supporting sources, and records the September 3, 2026 re-verification.
Status
Final payer and hospital/CAH policy; MIPS clinician changes proposed
Freshness
Current
Version
1.1
Stable ID
SIG-2026-009