CMS just added more O&P codes to its prior authorization and face-to-face lists. Here's what that means at the appointment level.

The Centers for Medicare & Medicaid Services has updated three administrative lists that govern how Medicare handles certain prosthetic and orthotic device orders: the Required Face-to-Face and Written Order Prior to Delivery List, the Required Prior Authorization List, and a related code update. Trade publication The O&P EDGE reported the changes on August 11, 2026, though the article’s summary did not specify the effective dates or enumerate each newly added code.

For most people, a headline about HCPCS code list updates is not alarming. The lists are updated periodically, the requirements they describe are not new, and clinics that file Medicare claims already navigate them routinely. What matters is understanding what the lists actually do — because if a device you need ends up on one of them, the process changes in concrete ways.

What the two lists are

The Required Face-to-Face and Written Order Prior to Delivery List covers items for which Medicare requires a documented, in-person encounter between the patient and a treating physician, nurse practitioner, or clinical nurse specialist before the device can be delivered — and a written order received by the supplier before delivery as well. The intent is to establish a contemporaneous clinical record that the patient was assessed and that the device was medically necessary, before it arrives.

“Prior to delivery” is the key phrase. The face-to-face and the written order are not just documentation that needs to be filed eventually; they have to happen first.

The Required Prior Authorization List is a separate layer. Items on this list require the supplier to submit documentation to the Medicare Administrative Contractor (MAC) and receive written approval before delivering the device and billing Medicare. If Medicare does not approve the item in advance, it will not pay for it after the fact. Prior authorization under Medicare DMEPOS is not a guarantee of payment — it is a preliminary determination that, assuming the claim matches the approved request, coverage should apply.

For devices not on the prior authorization list, a supplier can bill after delivery, and the claim either processes normally or gets reviewed after the fact. The prior authorization list moves that review to the front of the timeline.

What this means if your device is newly on a list

If a code for a device you need is now on the Required Prior Authorization List, your O&P supplier has to submit clinical documentation — typically a detailed written order, notes from the treating physician, any relevant functional assessment documentation, and supporting medical records — before your device can be delivered.

How long that takes depends on the MAC. Medicare’s DMEPOS prior authorization process has a standard turnaround and an expedited pathway for situations where delay would seriously jeopardize the patient’s health. The burden of assembling the documentation falls primarily on the supplier and the prescribing physician, but the person waiting for a device lives with the timeline.

If a code is now on the face-to-face list but not the prior authorization list, the sequence changes: a clinical visit needs to be documented before delivery, but the approval-before-delivery requirement does not apply in the same way. The paperwork trail matters regardless — Medicare audits claims after the fact and will deny payment if required documentation is missing.

The useful questions

If you are currently in the process of ordering a prosthetic or orthotic device through Medicare, these are worth asking your O&P provider:

• Is the HCPCS code for my device affected by the August 2026 update?
• If prior authorization is required, has the PA request been submitted? What is the expected timeline for a determination?
• If face-to-face documentation is required, does the treating physician have the record, and has the written order been received?
• If my PA request is denied, what is the appeals process and who handles it?

Your supplier is responsible for knowing which requirements apply to your device. That does not mean it hurts to ask directly — it means you have a legitimate reason to.

Check the actual lists

The O&P EDGE article links to the updated CMS lists; the source article is the right place to see the specific codes affected. CMS also maintains the lists on its DMEPOS supplier pages at cms.gov. If you are trying to determine whether a specific HCPCS code is on either list, the code lookup is on the CMS website or can be verified directly with your MAC.

What this does not change

Medicare’s coverage criteria for prosthetics and orthotics are set by Local Coverage Determinations (LCDs) and national coverage policy. Adding a code to the prior authorization or face-to-face list does not alter the underlying medical necessity criteria — it changes the timing and the sequence of the administrative review. A device that meets coverage criteria before this update still meets them after it. The additional step is process, not clinical judgment.

Whether that process adds two weeks or two months to a delivery timeline depends on documentation readiness, MAC workload, and how quickly physicians, suppliers, and the patient’s care team can coordinate. The system works better when everyone knows which step is next.

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Amputee News does not provide individualized insurance, billing, or coverage advice. Medicare coverage for prosthetics and orthotics depends on applicable coverage policy, Local Coverage Determinations, functional assessments, and claim-specific documentation. For questions about your coverage, call 1-800-MEDICARE or reach a State Health Insurance Assistance Program (SHIP) counselor at no cost. For prior authorization questions, your O&P supplier is the right starting point.