Introduction
The Centers for Medicare & Medicaid Services (CMS) has released the Calendar Year (CY) 2027 Hospital Outpatient Prospective Payment System (OPPS) and Ambulatory Surgical Center (ASC) Proposed Rule. This proposal outlines updates to Medicare payment policies for hospital outpatient departments and ambulatory surgical centers beginning in 2027, if finalized.
The proposed rule affects hospitals, outpatient facilities, ambulatory surgical centers, medical billers, coders, Revenue Cycle Management (RCM) professionals, and healthcare administrators. While these policies are proposed and not yet final, they provide valuable insight into the future direction of Medicare outpatient reimbursement.
What is OPPS?
The Hospital Outpatient Prospective Payment System (OPPS) is Medicare’s payment methodology for services provided in hospital outpatient departments.
Under OPPS, hospitals receive predetermined payments for outpatient services based on Ambulatory Payment Classifications (APCs) rather than reimbursement for actual costs. This standardized system helps promote consistent reimbursement and efficient healthcare delivery.
What is an Ambulatory Surgical Center (ASC)?
An Ambulatory Surgical Center (ASC) is a healthcare facility that performs same-day surgical procedures without requiring an overnight hospital stay.
CMS updates payment policies for ASCs annually, and the CY 2027 proposed rule includes revisions that affect reimbursement and quality reporting for these facilities.
Key Highlights of the CY 2027 Proposed Rule
1. Proposed 2.4% Increase in OPPS and ASC Payment Rates
CMS proposes a 2.4% increase in payment rates for hospital outpatient departments and eligible ASCs that meet quality reporting requirements.
The proposed update is based on:
- 3.2% hospital market basket increase
- 0.8 percentage point productivity adjustment
If finalized, hospitals and ASCs meeting quality requirements would receive higher Medicare reimbursement beginning in CY 2027.
2. Hospital Outpatient Quality Reporting (OQR) Program Updates
CMS proposes updates to the Hospital Outpatient Quality Reporting (OQR) Program.
The goal is to:
- Improve patient care quality.
- Reduce unnecessary administrative burden.
- Enhance reporting accuracy.
- Support value-based healthcare initiatives.
3. Ambulatory Surgical Center (ASC) Quality Reporting Changes
The proposal also updates the ASC Quality Reporting (ASCQR) Program.
Facilities that fail to meet quality reporting requirements may receive reduced Medicare payment updates.
4. Proposed Site-Neutral Payment Expansion
CMS proposes expanding site-neutral payment policies by applying reduced payment rates to additional imaging services performed in certain off-campus provider-based departments.
CMS estimates this change could reduce Medicare spending while promoting payment consistency across care settings.
5. Proposed Changes to 340B Drug Payments
CMS proposes changes to reimbursement for certain drugs purchased under the 340B Drug Pricing Program, including revisions to payment methodology and related recoupment policies. These proposals have generated significant discussion among hospital organizations because of their potential financial impact.
How Does This Affect Medical Billers?
Hospital billing teams should monitor the proposed rule because it may affect:
- UB-04 institutional claim billing.
- Hospital outpatient reimbursement.
- APC payment calculations.
- Revenue Code reporting.
- HCPCS coding.
- Medicare outpatient claim processing.
- Payment posting.
- Accounts Receivable (AR) follow-up.
No immediate billing changes are required until CMS publishes the final rule.
Impact on Revenue Cycle Management (RCM)
Potential impacts include:
Patient Registration
Accurate demographic and insurance information remain essential.
Insurance Verification
Verify Medicare eligibility and outpatient coverage before services are provided.
Medical Coding
Continue using current ICD-10-CM, CPT®, and HCPCS coding guidelines until any finalized updates become effective.
Claim Submission
Institutional claims should continue to be submitted using current CMS billing requirements.
Denial Management
Monitor CMS and Medicare Administrative Contractor (MAC) guidance for future implementation details if the proposed changes are finalized.
What Healthcare Organizations Should Do Now
Although the proposal is not final, healthcare organizations should:
- Review the proposed rule summary.
- Educate billing and coding staff.
- Monitor CMS announcements.
- Follow updates from Medicare Administrative Contractors (MACs).
- Prepare for future payment policy changes.
- Submit public comments if applicable before the deadline.
Important Reminder
This is a Proposed Rule, not a Final Rule.
Current Medicare outpatient billing policies remain in effect until CMS issues the final OPPS/ASC rule and announces its implementation date.
Frequently Asked Questions
What is OPPS?
OPPS (Hospital Outpatient Prospective Payment System) is Medicare’s payment system for services provided in hospital outpatient departments.
What is an ASC?
An Ambulatory Surgical Center (ASC) is a facility that performs outpatient surgical procedures that do not require an overnight hospital stay.
What payment increase is proposed?
CMS proposes a 2.4% increase in payment rates for eligible hospital outpatient departments and ASCs that meet quality reporting requirements.
Are these changes effective now?
No. These are proposed changes. The final rule will be published after CMS reviews public comments.
Who is affected?
The proposed rule may affect:
- Hospitals
- Ambulatory Surgical Centers
- Medical Billers
- Medical Coders
- Revenue Cycle Management Professionals
- Healthcare Administrators
Official Resources
- CMS OPPS & ASC Fact Sheet:Â https://www.cms.gov/newsroom/fact-sheets/calendar-year-2027-hospital-outpatient-prospective-payment-system-opps-ambulatory-surgical-center
- CMS Hospital Outpatient PPS Page:Â https://www.cms.gov/medicare/payment/prospective-payment-systems/hospital-outpatient
- Federal Register:Â https://www.federalregister.gov/
Key Takeaways
- CMS has proposed a 2.4% payment increase for eligible hospital outpatient departments and ASCs.
- The proposal includes updates to quality reporting programs.
- Site-neutral payment expansion is proposed for certain imaging services.
- CMS has proposed changes affecting the 340B Drug Pricing Program.
- The rule is proposed, not final, and current billing policies remain in effect until CMS issues the final rule.
Conclusion
The CY 2027 OPPS and ASC Proposed Rule represents an important update for hospital outpatient reimbursement and institutional billing. Although the proposals are not yet final, understanding the potential changes allows healthcare organizations, medical billers, and Revenue Cycle Management professionals to prepare for future Medicare policy updates.
Staying informed through official CMS guidance will help ensure compliance, accurate reimbursement, and a smooth transition if these proposals are finalized.