Dmepos Prior Authorization Requirements: What Changes October 28, 2026?

By Author: Meenu
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If an organization supplies Durable Medical Equipment, Prosthetics, Orthotics, and Supplies (DMEPOS) to Medicare beneficiaries, October 28, 2026, is an important date to review.

CMS announced that 20 HCPCS codes will be added to the DMEPOS Master List effective October 28, 2026. Eight codes have been selected for required prior authorization. Six will begin nationwide on October 28, while two upper-limb orthosis codes will follow a phased rollout.

Which DMEPOS Items Are Affected?
Six codes will require prior authorization nationwide beginning October 28:
• L0456, L0457, L0486: Thoracic lumbar sacral orthoses
• L1833: Knee orthosis
• E0194: Pressure-reducing support surface
• K0005: Manual wheelchair base
Codes L3761 and L3916 will follow a phased implementation.

Phase 1: October 28, 2026, in California, Florida, Michigan, and New York.
Phase 2: January 26, 2027, expanding to Arizona, Georgia, Illinois, Massachusetts, Ohio, Oregon, Pennsylvania, and Texas.
Phase 3: April 26, 2027, nationwide.
Master List Does Not Automatically Mean Prior Authorization

CMS ...
... states that the Master List will contain 550 items as of October 28, 2026. The Required Prior Authorization List will contain 82 items, while the Required Face-to-Face Encounter and Written Order Prior to Delivery List will contain 105 items.

Being on the Master List alone does not mean a supplier must take action. The item must also appear on one or both Required Lists for the applicable requirement to apply.

What Should DMEPOS Organizations Review?
The changes make it important to identify applicable requirements before delivery.

Organizations should review:
• HCPCS codes supplied to Medicare beneficiaries
• Applicable authorization requirements
• Written orders and supporting documentation
• State-specific implementation dates
• Information transferred from delivery to billing

A practical workflow can be viewed as:
Order → Documentation → Authorization → Delivery → Billing
For organizations reviewing their workflow, DMEPOS prior authorization services can address authorization-related processes before affected items reach billing.

Another Medicare Update on October 15
CMS is also implementing a separate one-year nationwide probationary prior authorization process beginning October 15, 2026, for newly enrolled DMEPOS suppliers and suppliers undergoing a change of ownership.
This is separate from the October 28 expansion.

Where Billing Fits
Authorization is only one part of the process. Eligibility verification, claim submission, payer follow-up, denials, payment posting, and A/R follow-up also connect to the billing workflow.

Organizations evaluating DMEPOS billing services USA may therefore want to review how information moves across each stage.

Reenix Excellence provides DMEPOS billing, prior authorization support, eligibility verification, claim follow-up, denial management, A/R follow-up, payment posting, and revenue cycle management services for U.S. healthcare organizations.

Questions to Ask Before October 28
1. Do we supply any affected HCPCS codes?
2. Which implementation phase applies to our locations?
3. Are authorization and documentation requirements identified before delivery?
4. Does pre-delivery information carry accurately into billing?
5. Are staff prepared for the applicable Medicare requirements?
Reviewing these questions before the effective dates can help organizations identify workflow gaps and determine where process changes may be needed.

Request a Complimentary DMEPOS Prior Authorization & Billing Workflow Assessment

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