Durable Medical Equipment Billing 2026: Supplier Billing Numbers, DMEPOS Changes & Compliance

If you bill Medicare for durable medical equipment, 2026 has brought more regulatory change than any year in recent memory. CMS has moved from triennial to annual accreditation surveys, expanded the prior authorization list with seven new HCPCS codes, added eight oxygen codes to the face-to-face encounter requirements, and implemented fee schedule adjustments that vary by geographic area and competitive bidding history. On top of all that, the competitive bidding program itself remains in a gap period — Round 2021 contracts have expired, and CMS has confirmed that the next round won't launch until January 1, 2028 at the earliest.

For DME suppliers juggling enrollment, accreditation, documentation, and billing compliance, the cost of getting any one of these wrong ranges from claim denials to civil monetary penalties to outright revocation of billing privileges. This guide walks through the major 2026 DMEPOS changes and what your billing operation needs to do about them.

DME Supplier Enrollment and Billing Numbers

Before a single claim can be submitted, a DME supplier must be properly enrolled in Medicare through the Provider Enrollment, Chain, and Ownership System (PECOS). The enrollment process establishes your supplier billing number — the unique identifier that ties your organization to every claim, payment, and compliance action in the Medicare system.

Enrollment Requirements

Requirement	Details	Compliance Risk
DMEPOS accreditation	Must obtain accreditation from a CMS-approved accrediting organization before enrollment; process can take up to 9 months	Cannot bill Medicare without active accreditation; claims submitted without it will be rejected
Surety bond	$50,000 bond required per NPI; annual premium typically 1%-5% ($500-$2,500/year)	Lapsed bond triggers revocation of billing privileges; no grace period
PECOS enrollment	Complete CMS-855S application through PECOS; include all practice locations and authorized officials	Incomplete applications delay enrollment; billing cannot begin until enrollment is effective
NPI registration	Each billing location requires its own NPI; supplier billing number is tied to NPI	Using incorrect NPI results in claim rejections and potential fraud referral
State licensure	Must hold applicable state licenses for each location where DME is supplied	Operating without proper licensure can trigger immediate revocation
Physical location	Must maintain a physical facility on an appropriate site; cannot be a P.O. box or commercial mailbox	CMS conducts unannounced site visits; failure = revocation of billing privileges

The 36-month rule: When a DME supplier undergoes a change in majority ownership within 36 months of initial enrollment, CMS generally requires the new entity to re-enroll rather than transfer existing billing privileges. This resets the enrollment clock and can create a billing gap if not planned for in advance.

Annual Accreditation: The Biggest 2026 Change

This is arguably the most consequential change for DME suppliers in 2026. Effective January 1, 2026, CMS now requires that accreditation organizations conduct surveys at least annually for all DMEPOS suppliers — replacing the previous triennial (every three years) survey cycle. This shift means that compliance is no longer something you ramp up for every few years. It needs to be embedded in your daily operations.

What Annual Accreditation Means for Your Operations

• Continuous readiness: Policies, procedures, and quality management documents must stay current year-round — not just during survey preparation windows
• Staff training documentation: All staff involved in DME supply, delivery, and billing must have up-to-date training records, competency assessments, and HIPAA compliance documentation at all times
• Documentation systems: Patient intake forms, delivery tickets, signed ABNs, and proof-of-delivery records must be audit-ready on any given day
• Quality assurance: Complaint and incident tracking systems must show active monitoring, investigation, and resolution — accreditors will look for trends
• Facility compliance: Physical facility must meet CMS supplier standards at all times — proper signage, accessible hours, and equipment storage compliance

Expanded Face-to-Face Encounter and Prior Authorization Requirements

On January 13, 2026, CMS published a Federal Register notice expanding both the Face-to-Face Encounter/Written Order Prior to Delivery (F2F/WOPD) list and the Required Prior Authorization list. These changes took effect April 13, 2026, and they directly impact how DME claims are documented and submitted.

List	2026 Update	Total Items	Key Addition
F2F/WOPD List	8 oxygen and oxygen delivery system codes added	83 items total	Oxygen concentrators, portable oxygen systems, and related delivery equipment now require a face-to-face encounter within 6 months before ordering
Required Prior Authorization List	7 new HCPCS codes added	74 items total	New codes require prior authorization as a condition of payment nationwide effective April 13, 2026

 

Face-to-Face Encounter Requirements

For all items on the F2F/WOPD list, the treating practitioner must conduct a documented face-to-face encounter with the patient within six months before the order date. The encounter must be used to diagnose, treat, or manage the clinical condition for which the DME is ordered.

F2F Documentation Element	Requirement
Timing	Must occur within 6 months preceding the DME order date
Who can conduct	Treating physician, physician assistant, nurse practitioner, or clinical nurse specialist
What must be documented	Subjective and objective patient-specific clinical information supporting the need for the ordered DME
Where it's documented	Must appear in the pertinent portion of the medical record — history, physical exam, diagnostic tests, or progress notes
Telehealth	Face-to-face encounters conducted via telehealth are acceptable if the encounter meets all other documentation requirements

 

Standard Written Order (SWO) Requirements

Every DME claim requires a Standard Written Order that meets CMS specifications. The SWO must be in place before delivery for items on the F2F/WOPD list, and must contain all required elements. An incomplete or missing SWO is one of the top reasons for DME claim denials.

SWO Element	Details
1. Beneficiary name or MBI	Patient's legal name as it appears on their Medicare card, or Medicare Beneficiary Identifier
2. Item description	Specific description of the DME item ordered — general categories like 'wheelchair' are insufficient
3. Quantity	Number of items ordered, if applicable
4. Order date	Date the treating practitioner signed the order
5. Treating practitioner name or NPI	Must identify the ordering practitioner
6. Treating practitioner signature	Wet signature, electronic signature, or signature log is acceptable
7. Start date (if applicable)	For rental items or items with a specific start date requirement

 

2026 DMEPOS Fee Schedule Updates

The 2026 DMEPOS fee schedule introduces differentiated increases based on whether items were previously subject to competitive bidding and the geographic area where the beneficiary resides. Understanding these distinctions is important for accurate reimbursement expectations and financial forecasting.

Category	2026 Fee Increase	Details
Non-competitive bidding items	2.0%	Items that were never part of the DMEPOS Competitive Bidding Program
Former CB items — in former CBA areas	2.8%	Off-the-shelf knee and spinal orthoses and other former CB items for patients in areas that were Competitive Bidding Areas
Former CB items — non-CBA areas	2.7%	Same items but for patients in areas that were not part of Round 2021 competitive bidding
Labor codes (orthotics L4205, prosthetics L7520)	2.7%	Labor component codes for orthotic and prosthetic claims

 

Competitive bidding gap: All Round 2021 competitive bidding contracts have expired, and CMS has confirmed the next round won't launch until January 1, 2028 at the earliest. During this gap, former CBA rates remain in effect and are adjusted annually. Suppliers should monitor CMS announcements for any interim pricing changes.

Commonly Billed DME HCPCS Codes

DME billing uses HCPCS Level II codes rather than CPT codes. Each item category has specific billing rules, coverage criteria, and documentation thresholds. The table below highlights the most frequently billed DME categories and the key compliance points your billing team should be aware of.

HCPCS Code	Description	Billing Type	Key Compliance Points
E0601	Continuous positive airway pressure (CPAP) device	Rental (13 months)	Requires sleep study documentation; LCD L33718 applies; 90-day compliance review required
E1390	Oxygen concentrator, single delivery port	Rental (36 months)	Qualifying oxygen saturation test required; LCD L33797 applies; now requires F2F encounter
E0260	Hospital bed, semi-electric	Rental or purchase	Medical necessity must document why home bed is insufficient; LCD L33820 applies
K0823	Power wheelchair, Group 2 standard	Purchase (capped rental)	LCD L33789 applies; requires face-to-face, specialty evaluation, and prior authorization
E0431	Portable gaseous oxygen system, rental	Rental	Part of oxygen benefit; must meet same qualifying criteria as concentrator; F2F required as of April 2026
E0470	RAD (Respiratory Assist Device) with backup rate	Rental (13 months)	Used for conditions like COPD, neuromuscular disease; requires sleep study or clinical documentation

 

Common ICD-10 Codes for DME Claims (Connector-Verified)

The diagnosis code on a DME claim must support medical necessity for the specific item being billed. An incorrect or unsupported diagnosis code is one of the most frequent reasons for DME claim denials. All codes below have been verified through the ICD-10 diagnostic code connector as HIPAA-valid.

ICD-10 Code	Description	Common DME Association
G47.33	Obstructive sleep apnea (adult) (pediatric)	CPAP/BiPAP devices (E0601, E0470); requires polysomnography documentation
J96.11	Chronic respiratory failure with hypoxia	Oxygen concentrators and portable oxygen (E1390, E0431); qualifying ABG or oximetry required
Z99.81	Dependence on supplemental oxygen	Secondary code for ongoing oxygen therapy; supports continued rental beyond initial period
G82.20	Paraplegia, unspecified	Power and manual wheelchairs (K0823, K0001); supports power mobility medical necessity
M62.81	Muscle weakness (generalized)	Hospital beds, patient lifts, wheelchairs; document functional limitation in ADLs
E11.65	Type 2 diabetes mellitus with hyperglycemia	Glucose monitors, insulin pumps, therapeutic shoes; supports diabetic DME benefit

 

CMS Coverage Policies for DME (NCD and LCDs)

DME coverage is governed by a combination of one National Coverage Determination and multiple Local Coverage Determinations issued by the DME MACs. Your billing team must know which LCD applies to each equipment category — submitting a claim without meeting the LCD criteria is a fast path to denial.

Document ID	Title	Coverage Type	Key Items Covered
NCD 280.1	Durable Medical Equipment Reference List	National (NCD)	Master reference list defining DME categories and general coverage criteria under Medicare
L33797	Oxygen and Oxygen Equipment	LCD (DME MAC)	Oxygen concentrators, portable oxygen, liquid oxygen; requires qualifying O2 sat test
L33718	Positive Airway Pressure (PAP) Devices for OSA	LCD (DME MAC)	CPAP, BiPAP, and auto-titrating PAP devices; requires polysomnography and 90-day compliance
L33789	Power Mobility Devices	LCD (DME MAC)	Power wheelchairs and scooters; requires specialty evaluation, F2F, and prior authorization
L33820	Hospital Beds and Accessories	LCD (DME MAC)	Semi-electric, full-electric, and manual hospital beds; medical necessity documentation required
L33792	Wheelchair Options/Accessories	LCD (DME MAC)	Wheelchair cushions, backs, armrests, and accessories; must be medically necessary additions
L33788	Manual Wheelchair Bases	LCD (DME MAC)	Standard, lightweight, ultra-lightweight, and heavy-duty manual wheelchairs

 

Top DME Billing Denial Reasons and How to Prevent Them

 

Denial Reason	Root Cause	Prevention Strategy
Missing or incomplete SWO	Standard Written Order lacks required elements (signature, date, item description, or NPI)	Implement SWO checklist with all 7 required elements; reject incomplete orders before processing
No face-to-face encounter	Items on F2F/WOPD list billed without documented qualifying encounter within 6 months	Track F2F list against orders; verify encounter date falls within the 6-month lookback window
Prior authorization not obtained	Items on Required PA List billed without approved prior authorization	Cross-reference every order against the current 74-item PA list before delivery
Unsupported diagnosis code	ICD-10 code does not support medical necessity for the specific DME item	Maintain LCD-specific diagnosis crosswalks; verify Dx against LCD coverage criteria at order intake
Lapsed accreditation	Supplier's accreditation expired under new annual survey cycle	Calendar annual survey deadlines; begin renewal process 90 days before expiration
Exceeded rental period	Claim submitted for rental months beyond the capped rental period	Track rental start dates and month counts; transition to ownership at month 13 (CPAP) or 36 (oxygen)
Missing proof of delivery	No signed delivery ticket or shipping confirmation on file	Require signed POD for every delivery; implement same-day upload to document management system

 

Frequently Asked Questions

Q: What changed with DMEPOS accreditation requirements in 2026?

A: Effective January 1, 2026, CMS requires accreditation organizations to conduct surveys at least annually for all DMEPOS suppliers. Previously, accreditation was renewed every three years. This means suppliers must maintain continuous compliance readiness — updated policies, staff training documentation, quality assurance systems, and facility standards must be audit-ready at all times rather than only during triennial survey preparation.

Q: What is a DME supplier billing number and how do I get one?

A: A DME supplier billing number is the unique identifier assigned when a supplier enrolls in Medicare through PECOS (Provider Enrollment, Chain, and Ownership System). To obtain one, you must first get DMEPOS accreditation from a CMS-approved organization, post a $50,000 surety bond per NPI, complete the CMS-855S enrollment application, maintain a physical facility location, and hold applicable state licenses. The accreditation process alone can take up to nine months.

Q: What items were added to the face-to-face and prior authorization lists in 2026?

A: On January 13, 2026, CMS added 8 oxygen and oxygen delivery system HCPCS codes to the Face-to-Face Encounter and Written Order Prior to Delivery list, bringing the total to 83 items. Seven new HCPCS codes were added to the Required Prior Authorization list, bringing that total to 74 items. These changes took effect April 13, 2026, and apply nationwide as a condition of payment.

Q: What are the 2026 DMEPOS fee schedule increases?

A: For 2026, non-competitive bidding items receive a 2.0% fee increase. Former competitive bidding items receive a 2.8% increase for patients in former Competitive Bidding Areas and a 2.7% increase for patients in non-CBA areas. Labor codes for orthotic (L4205) and prosthetic (L7520) claims increase by 2.7%. All Round 2021 competitive bidding contracts have expired, with the next round not expected until January 1, 2028.

Q: What elements must be included in a DME Standard Written Order?

A: A compliant Standard Written Order must include seven elements: beneficiary name or Medicare Beneficiary Identifier (MBI), a specific description of the DME item, quantity if applicable, the order date, the treating practitioner's name or NPI, the treating practitioner's signature (wet, electronic, or signature log), and a start date if applicable. For items on the F2F/WOPD list, the SWO must be completed before delivery. Missing any element can result in claim denial.

Q: How does prior authorization work for DME items?

A: For items on the CMS Required Prior Authorization List, the supplier or ordering provider must submit a prior authorization request demonstrating that the item meets all Medicare coverage requirements before furnishing the item to the patient. CMS reviews the request and issues an approval or denial. Prior authorization is a condition of payment — delivering an item without an approved PA for listed items means Medicare will not pay the claim, and the supplier cannot bill the beneficiary.