DME Billing Services
Durable medical equipment suppliers deal with strict paperwork. A claim often needs a written order, proof of delivery, and documents that show the patient meets coverage rules. Some items are rented month after month, and payers check each rental period.
DME billing also depends on exact HCPCS codes and modifiers. One wrong modifier can turn a payable claim into a denial. Westmont Revenue Partners connects DME suppliers with vetted medical billing experts who understand these requirements. Good DME billing keeps your orders, delivery records, and claims in step, which helps protect cash flow when equipment costs are paid up front.
Who this is for
- Independent DME suppliers and home medical equipment companies
- Respiratory and sleep equipment providers
- Mobility and wheelchair suppliers
- Suppliers that serve Medicare, Medicaid, and commercial plans
- Owners and intake teams who manage orders and authorizations
What gets billed
- Oxygen concentrators and portable oxygen systems
- CPAP devices and related supplies
- Home ventilators and respiratory equipment
- Wheelchairs, walkers, and mobility aids
- Hospital beds and related equipment
- Monthly rentals and capped rental items
- Purchased new and used equipment
- Repairs and replacement parts
- Supplies that are refilled on a schedule
- Items denied in advance with a signed notice from the patient
Commonly billed codes
| Code | Type | What it covers |
|---|---|---|
| E0601 | HCPCS | Continuous positive airway pressure device |
| E1390 | HCPCS | Oxygen concentrator |
| E0431 | HCPCS | Portable gaseous oxygen system |
| E0466 | HCPCS | Home ventilator, non-invasive |
| NU | Modifier | New equipment purchase |
| UE | Modifier | Used equipment purchase |
| RR | Modifier | Equipment rental |
| KH | Modifier | First rental month or purchase |
| KI | Modifier | Second or third rental month |
| KX | Modifier | Coverage requirements in the policy are met |
| GA | Modifier | Signed waiver of liability on file |
| GY | Modifier | Item not covered by statute |
| GZ | Modifier | Item expected to be denied as not necessary, no waiver on file |
Note
Codes are examples for orientation, not a complete list, and do not guarantee coverage or payment. Always check current code sets and payer policy.
Billing challenges in DME
Medical necessity documentation. Coverage rules vary by item. Payers often want a written order and notes that show need. Billers help intake teams collect the right documents before delivery.
Modifiers and rental periods. Rental items use different modifiers across the first month and later months. Some pricing modifiers must come before coverage modifiers. Billers keep modifier order consistent in the claim.
KX and waiver modifiers. The KX modifier says coverage rules are met. It cannot be used with some waiver modifiers on the same line. Billers check these combinations to avoid claims that cannot be processed.
Proof of delivery. Payers may ask for signed delivery records. Missing proof can lead to recoupment later. Billers set up a process so delivery records are stored with the claim.
Competitive bidding changes. Medicare has announced a future competitive bidding round for certain product categories, starting in 2028. Suppliers should watch for updates and check which items will be affected.
Refill and resupply rules. Recurring supplies need patient contact and proof of need before each shipment. Billers track dates and quantities so shipments follow payer limits.
Authorization and ordering rules. Some items require approval or a specific order format. Billers check payer rules before delivery, not after the claim is denied.
How Westmont can help
- Match your company with vetted billing experts who know DME coding, modifiers, and documentation
- Support end-to-end revenue cycle work from intake to payment posting
- Help with denial management, appeals, and audit responses
- Connect you with experts for supplier enrollment and accreditation questions
- Give you a way to compare billing partners before you commit
Frequently asked questions
What does DME billing involve?
It involves matching each item to a HCPCS code, adding the right modifiers, and supporting the claim with orders and delivery records. Some items are purchased and others are rented over time. Rules differ by payer, so check each plan and Medicare guidance for the item.
What is the KX modifier?
KX tells the payer that the medical policy requirements for the item have been met. It should only be used when the documents are in the file. It can cause problems if combined with certain waiver modifiers, so billers review each claim line for conflicts.
How are rentals billed?
Rental items are billed by period, often monthly, with modifiers that show the rental month. Some items move from rental to ownership under payer rules. Your billing team should track start dates and rental months for each patient to avoid claim errors.
Why are DME claims audited so often?
DME has a history of high audit activity because documentation requirements are strict. Missing orders, delivery proof, or notes are common reasons for recoupment. A steady documentation process and periodic internal review can reduce risk.
Can a DME supplier outsource billing?
Yes. Westmont does not submit claims itself. We connect you with vetted billing experts who know DME rules. Ask about their experience with your product lines, audit support, and how they work with your intake and delivery systems.
Related billing services
See what simpler billing looks like
Tell us about your practice and we will connect you with vetted billing experts. Contact Westmont for a quote.
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