2027 PFS Proposed Rule: What Wound Care Providers Need to Know

CMS released the 2027 Physician Fee Schedule (PFS) proposed rule in July 2026, and every wound care provider needs to review it before the public comment period closes in September. The 2027 physician fee schedule shapes wound care reimbursement for every CPT code you bill under Medicare Part B — conversion factor, work RVUs, practice expense values, and E/M rates all reset on January 1. Practitioners who read the proposed rule in July can submit data-backed comments that shape the final rule in November. Those who wait until January open a spreadsheet and wonder why revenue per visit dropped.

This post is a practitioner-level breakdown of what the 2027 PFS proposed rule covers, which wound care codes are most likely to move, and exactly what to do before the September comment deadline.

What the PFS Is and Why It Controls Your Revenue

Medicare calculates reimbursement for every Part B service using a three-component formula:

(Work RVU × Work GPCI) + (PE RVU × PE GPCI) + (MP RVU × MP GPCI) × Conversion Factor

The conversion factor (CF) is the dollar-per-RVU multiplier that CMS sets each year. When it drops, every service you bill pays less — without any change in clinical work. Work RVUs reflect the time, skill, and intensity of a procedure. Practice expense (PE) RVUs cover your overhead and supply costs. The geographic practice cost indices (GPCIs) adjust for regional cost differences.

Wound care practices are highly concentrated in a narrow CPT set — primarily the debridement codes, skin substitute application codes, and same-day E/M codes. That concentration means a 1.5% CF reduction or a work RVU adjustment on a single high-volume code can erase tens of thousands of dollars annually at scale. Understanding the PFS is not optional for any practice serious about sustainable wound care revenue modeling.

Key 2027 Physician Fee Schedule Proposals for Wound Care

CMS publishes the full proposed rule in the Federal Register each July and releases a companion ZIP file of proposed payment rates at cms.gov. For wound care providers, the three areas that warrant immediate attention are: the conversion factor, work RVU adjustments to the debridement family, and PE RVU changes for skin substitute application codes.

Conversion Factor and the Budget Neutrality Problem

The CF has faced chronic downward pressure from two statutory constraints: the budget neutrality requirement (any upward RVU adjustment elsewhere must be offset by a CF reduction) and PAYGO rules that cap Medicare spending growth. Congress has periodically passed CF "patches" to mitigate reductions, but these patches expire and the cycle restarts.

The practical impact is real math. If your practice bills 500 wound care visits per month at an average of 3.5 RVUs per visit, a CF reduction of even $0.75 costs you approximately $15,750 per year on that volume alone — before accounting for skin substitute codes, which carry significantly higher RVU values. Run that calculation against your own encounter volume and code mix using the proposed rate tables in the Federal Register. Every year you skip this step is a year you discover the problem in March.

The 2026 reimbursement environment — and what drove changes from the prior year — is documented in our wound care billing changes 2026 guide. Use that as your baseline when projecting 2027 impact.

Work RVU Adjustments for Debridement and Skin Substitute Codes

CMS conducts RVU reviews through both the AMA Relative Value Scale Update Committee (RUC) process and its own internal analyses. The 2027 proposed rule can include work RVU changes to the codes wound care practices depend on most:

Excisional debridement (11042–11047): These codes cover debridement of subcutaneous tissue, muscle fascia, muscle, and bone. They carry strong work RVU values relative to procedure time, which is why they anchor high-revenue wound care visits. Any downward adjustment directly lowers your revenue per debridement encounter.

Selective debridement (97597–97598): Billed heavily in mobile, SNF, and home health wound care settings, these codes can see practice expense RVU adjustments that change the facility versus non-facility rate differential. If you bill predominantly in non-facility settings — patient homes, SNFs, assisted living facilities — track PE RVU proposals closely.

Skin substitute application (15271–15278): The 2026 flat-rate policy at $127.14/sq cm changed the payment structure for skin substitutes significantly. The application CPT codes carry their own RVU values separate from the product payment, and those application RVUs can move independently. A reduction in the 15271–15278 work or PE RVUs compounds on top of any product reimbursement constraints.

For the complete CPT code framework that governs wound care billing, see our wound care CPT codes 2026 reference — compare current values against the proposed 2027 rates line by line.

Skin Substitutes in 2027: After the Flat Rate

The 2026 skin substitute consolidated payment policy — $127.14/sq cm as a flat rate replacing the prior Q-code-based ASP pricing — restructured how practices stock and apply advanced wound care products. The 2027 proposed rule may refine how CMS administers this policy, including:

Multi-wound application visits: How the flat rate applies when a provider treats multiple wound sites in a single encounter remains an area where MAC-level guidance varies. Look for any proposed clarification in the 2027 rule's coverage article language.
Size documentation standards: Auditors increasingly focus on square centimeter measurements when reviewing skin substitute claims. The 2027 rule may codify documentation expectations currently enforced through recovery audit contractor (RAC) activity.
LCD alignment: Local coverage determinations from each MAC define which patients and wound types qualify. Any proposed LCD revisions issued alongside the PFS proposed rule affect your eligibility documentation requirements.

If your practice has already restructured its workflow around the 2026 flat rate, confirming that your documentation holds up under 2027 audit criteria is the priority. Your skin substitute billing guide covers the foundational documentation requirements — verify those align with any 2027 additions.

E/M Billing Changes That Touch Wound Care Visits

Most wound care providers bill an E/M code (typically 99213–99215 for established patients) alongside a procedure code using modifier 25 to justify the separate visit. The 2027 proposed rule may include:

Split/shared visit refinements: CMS has been tightening split/shared visit rules for SNF and home settings where NPs and physicians co-treat patients. Any 2027 clarification on who can bill the substantive portion and under what circumstances affects supervision-model practices directly.

MDM documentation thresholds: Medical decision-making documentation requirements for E/M level selection have been stable since 2021, but the 2027 rule may introduce refinements for certain care settings or patient complexity categories.

Telehealth E/M coverage: Hybrid wound care delivery models that combine telehealth assessments with in-person treatment depend on telehealth E/M rates staying intact. Track any proposed changes to the telehealth code list in the 2027 rule.

For practices operating under LCD requirements, changes to E/M policy can also affect how initial evaluations document medical necessity for subsequent wound care. Our wound care LCD compliance resource covers how these layers interact.

How to Submit Comments Before the September Deadline

CMS accepts public comments for 60 days after the proposed rule publishes — typically closing in mid-September 2026 for the 2027 rule. Your comments can influence the final rule.

To submit effectively:

Go to regulations.gov and search for the 2027 PFS proposed rule docket (CMS-1807-P or the current cycle number)
Submit specific, data-backed comments — generic opposition carries no weight
Focus on codes where proposed RVU values do not reflect actual time, complexity, or resource use based on your own practice data
Quantify impact: "This proposed RVU reduction would reduce our annual Medicare revenue by approximately $X across Y annual encounters"
Join coordinated comment campaigns from wound care professional associations, which aggregate practitioner data into aggregate comment letters

Comments that contain real practice volume data, patient complexity documentation, and specific code-level analysis are the ones that prompt CMS to address them by name in the final rule preamble. A two-paragraph letter expressing general concern does not move the needle.

Key Takeaways

The 2027 CMS Physician Fee Schedule proposed rule was released in July 2026; the public comment period closes in September — practitioners have roughly 60 days to respond.
Conversion factor reductions compound across your full visit volume; a sub-$1 CF drop can cost a mid-volume practice more than $15,000 annually without any change in clinical output.
Review proposed work and PE RVU changes for debridement codes (11042–11047, 97597–97598) and skin substitute application codes (15271–15278) against your actual 2026 billing volume.
The 2026 skin substitute flat rate ($127.14/sq cm) established the new payment baseline; watch the 2027 rule for documentation and multi-wound application clarifications.
Submit data-backed comments at regulations.gov before the September deadline — the comment period is the only point in the annual cycle where practitioners can directly shape final reimbursement rates.