ACC's Guide to the 2027 Medicare Rules

The Centers for Medicare and Medicaid Services (CMS) releases rulemaking to update the Medicare Physician Fee Schedule (PFS) and the Hospital Outpatient Prospective Payment System (OPPS) and Ambulatory Surgical Center (ASC) Payment System every year, and the ACC is committed to ensuring cardiovascular clinicians have the information they need to understand how changes will impact their practice and the patients they serve.

Explore the latest updates introduced by the 2027 proposed rules below.

Download ACC's PFS Proposed Rule Calculator

The ACC has developed a PFS calculator so clinicians and practice managers can estimate the potential impact of changes to their practices. Download the tool.

2027 Medicare PFS Proposed Rule

Explore highlights from the 2027 Medicare PFS proposed rule, including technical refinements and adjustments to the Ambulatory Specialty Model (ASM), proposed work, practice expense and liability inputs for newly created and revised cardiovascular codes, a proposal to reduce E/M services billed on the same day as a procedure by the same physician or practice by 50%, and more.
Get the details.

2027 OPPS and ASC Proposed Rule

The 2027 OPPS and ASC proposed rule continues to move services off the inpatient-only list and add services to the ASC covered procedures list, adjusts ambulatory payment classification groupings, updates the ASC and OPPS quality reporting programs, and adds a provision to pay off-campus imaging services at the PFS rate, among other proposals.
Read about provisions of note.

Additional Resources From 2026 Rulemaking: