Medicare Prior Authorization Requirements For DMEPOS Suppliers
Medicare Prior Authorization Requirements for DMEPOS suppliers are expanding. As of April 13, 2026, seven new HCPCS codes (many tied to orthotic devices) are added to the existing list of 67, making the new total items on the list 74. That’s 74 codes you need to get prior authorization on before providing these items and submitting CMS claims. Without prior authorization, you risk outright claim denial. Medicare is emphasizing that prior authorization is a condition of payment, not a suggestion.
In this blog, we’ll be breaking down what this Medicare policy update means for O&P medical billing, and providing insights about the importance of proper documentation, workflow alignment, and CMS compliance for your practice.
What Are Medicare Prior Authorization Requirements?
The Medicare required prior authorization list is a CMS program that identifies specific DMEPOS (Durable Medical Equipment, Prosthetics, Orthotics, and Supplies) that need conditional approval before patient delivery.
The purpose of the Medicare prior authorization requirement program is to reduce improper payments, prevent fraud, and ensure that CMS is only paying for services that are medical necessities. Not all DMEPOS items require prior authorization, the process only applies to specific items that CMS has identified as high risk. Each high risk item has a corresponding HCPCS code, and its crucial medical billers know these codes in order to ensure clean claims and proper compliance.
How Do Medicare Prior Authorization Requirements Change In April 2026?
As part of Medicare’s ongoing effort to monitor and address high-risk billing categories, CMS is expanding the Medicare Required Prior Authorization List effective April 13, 2026. The update adds 7 new HCPCS codes, increasing the total number of items subject to prior authorization from 67 to 74.
The newly added Prior Authorization Required HCPCS codes are:
- L0651 – Lumbar-sacral orthosis
- L1844 – Custom fabricated knee orthosis (single upright)
- L1846 – Custom fabricated knee orthosis (double upright)
- L1852 – Prefabricated knee orthosis
- L1932 – Carbon fiber ankle-foot orthosis (AFO)
- E0651 – Pneumatic compression device (non-calibrated)
- E0652 – Pneumatic compression device (calibrated)
Most of these codes are for orthotic devices, as seen in all “L codes”.
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Medicare Prior Authorization Approval Requirements
Prior authorization is a condition of payment. Meaning, you can’t provide a specified item before getting approval, otherwise you risk claim denial. Failure to meet the prior authorization condition is a sure way to increase your administrative and medical billing burden.
Luckily, securing approval is straightforward. A prior authorization request typically includes:
- A prescription or physician’s order
- Relevant medical records
- Detailed product descriptions, fitting notes, and similar supplier made documentation.
Can You Submit Prior Authorization Approval Requests Before 4/13/26?
If you’re actively working on a device that falls into the expanded list of prior authorization requirements, it’s wise to be proactive. DMEPOS suppliers don’t have to twiddle thumbs until the official effective date of April 13th 2026.
Noridian Healthcare Solutions, began accepting prior authorization requests for the newly added codes on Monday, March 30th. This early submission window gives suppliers a valuable buffer to prepare documentation, submit requests, and avoid delays for affected items.
How Do Updated Medicare Prior Authorization Requirements Affect O&P Providers?
Understanding Medicare prior authorization requirements is essential for avoiding denials, maintaining compliant billing workflows, and keeping the cash flow flowing. 5 of 7 of the new required HCPCS codes are L-codes, meaning a larger portion of O&P provider’s claims will now require prior authorization before services are delivered. This means increased administrative effort, more detailed documentation requirements, and a higher risk of claim denial if workflows aren’t followed precisely. More work upfront, fewer surprises on the backend if you get it right. Not a bad deal.
What Should DMEPOS Suppliers Do About Growing Medicare Prior Authorization Requirements?
Best to take a proactive approach to avoid disruptions. Medicare prior authorization requirements are not new to O&P providers – review the newly added HCPCS codes, update your internal workflows to reflect the new codes, and make sure your administrative and billing teams are aware of the importance of complying with the new policy.
This update affects O&P most directly, so be sure to coordinate with your referral partners to help them understand how physicians orders and supporting medical records play a crucial part in adhering to this update.
Of course, the best way to be sure your practice thrives through this period of Medicare scrutiny is to work closely with a medical billing expert and service provider, like CBS Medical Billing.
How Medical Billing Services Can Help
This Medicare policy update is one of a few major updates rolled out in 2026. (Heard about the Limited Supplier Number DMEPOS enrollment moratorium? Learn more here). Many O&P providers are struggling to adapt to the added administrative work and tightening compliance standards. Medical Billing Experts, like CBS Medical Billing, help growing O&P practices ensure optimal revenue cycle management taking major administrative burden off the in-house team, allowing your practice to focus on patient care rather than claims and compliance..
From verifying physician orders, organizing medical documentation, and aligning claim codes with CMS requirements, CBS ensures clean claim that take care of prior authorization requirements. You can expect a dramatic decrease in delays and denials, and more predictable cash flow. In 15 years, CBS Medical Billing has helped O&P and similar practices collect over $200 Million in revenue that may have otherwise been lost. That’s the power clean claims and better billing!
Key Takeaways About The Updates To Medicare Prior Authorization Requirements In 2026.
As mentioned above, getting prior authorization is a well known process for particular DMEPOS items. As of April 13 2026, Medicare’s required prior authorization list adds 7 new HCPCs codes, 5 of which are for O&P providers. The update reinforces the fact that prior authorization is considered a condition of payment for these codes, meaning failure to obtain prior authorization will likely lead to claim denial. Now is the time to tighten up workflows, strengthen documentation protocols, and ensure your processes align with Medicare prior authorization requirements.
Medical Billing is a complex puzzle, CBS is your practice’s missing piece. To learn more, or to get medical billing and consulting help from the best in the business, then submit a contact form on our website.
What are Medicare prior authorization requirements for DMEPOS?
Medicare prior authorization requirements ensure DMEPOS providers distribute select “high risk” devices only after getting pre-approval from CMS. This list of 74 devices and coresponding HCPCS codes clearly documents the requirements. The program’s purpose is to reduce improper payments, prevent fraud, and ensure that CMS is only paying for services that are medical necessities.
What changed in Medicare prior authorization rules in April 2026?
As of April 13th, 2026, 7 new codes/devices are added to the medicare prior authorization list. 5 of these codes/devices are directly applicabable to O&P providers.
What happens if prior authorization is not obtained for DMEPOS items?
Medicare has made it clear: prior autorization is a condition for payment. No pre-auth, no payment.
