HCPCS code K0098 – Drive belt for power wheelchair

Key takeaways

HCPCS code K0098 describes a drive belt for a power wheelchair, replacement only. It is a Level II code maintained by CMS.

K0098 is billed under Medicare Part B as durable medical equipment. The billing supplier must hold active DMEPOS accreditation and Medicare enrollment.

A replacement belt takes the RB modifier with the NU pricing modifier. RA and RR do not fit, because a belt is a part rather than a whole item or a rental.

Every K0098 line also needs exactly one of GA, GY, GZ or KX. Medicare rejects a line without one of the four as missing information.

The rate comes from the CMS DMEPOS fee schedule, not the physician fee schedule, and it varies by payment locality.

What HCPCS code K0098 covers, and what it does not

K0098 covers exactly one item: a replacement drive belt for a power wheelchair. It does not cover a new wheelchair, a belt supplied with new equipment, or any other accessory.

The code sits in the K-series of HCPCS Level II, which holds miscellaneous DME products that other HCPCS ranges do not capture.

According to the Centers for Medicare and Medicaid Services (CMS), which maintains the code set, the essentials read as follows.

That “replacement only” wording does real work. Billing K0098 for a belt that ships with a new chair is a coding error. So is billing it for a part that does not match the drive belt specification. Either one routinely draws a denial.

When Medicare Part B pays for a replacement drive belt

Medicare Part B pays when the wheelchair belongs to the beneficiary, the belt has worn or failed, and the file proves both.

Coverage is never automatic. K0098 follows the same framework the Medicare Benefit Policy Manual applies to every DMEPOS replacement part.

Eligibility also has to be confirmed before the belt leaves the warehouse, not after the claim bounces. That means checking Part B enrollment and the coverage history of the chair itself.

What has to be in the file before you bill

Medicare and most commercial payers want five things on hand:

• A practitioner order: a written order signed by the treating physician or qualified non-physician practitioner, authorizing the replacement drive belt.
• Medical necessity notes: records showing a qualifying mobility limitation that requires a power wheelchair. The notes should also show the belt needs replacing rather than repair.
• Beneficiary confirmation: proof that the patient is enrolled in Medicare Part B, and that the power wheelchair was originally covered by Medicare.
• Supplier accreditation: the billing supplier holds current accreditation from a CMS-approved organization and is enrolled in Medicare.
• Prior authorization, where it applies: some DME MAC jurisdictions ask for it on power wheelchair replacement parts. Verify with your DME MAC before you submit.

Commercial payers write their own coverage policies. Some mirror Medicare, others add criteria of their own, so read the plan’s DME policy before the belt ships.

Billing K0098 step by step, from order to claim line

The claim moves in six steps, and five of them happen before you submit anything. Work through them in order and the line goes out complete.

1. Confirm accreditation: the supplier must be actively accredited and enrolled with Medicare on the date of service.
2. Get the order: secure a signed practitioner order that specifically authorizes the replacement drive belt.
3. Verify eligibility: confirm Part B enrollment, and confirm the wheelchair itself was covered by Medicare.
4. Choose the modifiers: append RB with the NU pricing modifier, then add one of GA, GY, GZ or KX to state the coverage position.
5. Submit on the CMS-1500: Medicare DMEPOS claims go on the CMS-1500 form, or the 837P electronic equivalent. K0098 and its modifiers belong in Box 24D.
6. Keep the paperwork: hold the order, the delivery confirmation and the necessity notes on file. DME MACs request them during post-payment review.

Here is how that looks on a live claim. A beneficiary owns her power wheelchair outright, bought two years ago. The belt starts slipping, a technician confirms wear, and her physician signs a replacement order.

The belt is delivered on 3 September, so that is the date of service. The line reads K0098 with RB, NU and KX, one unit. Labor goes on a separate line under its own code.

RB plus NU, then one of four coverage modifiers

Modifier selection is where most K0098 claims go wrong. Two separate decisions have to be right on the same line.

The first says what you supplied and how it is priced. The second tells the DME MAC where the claim stands on coverage. The chart below maps both decisions, and the table under it explains each modifier.

The CMS policy article for wheelchair options and accessories, A52504, carries the definition of RB. It covers an option or accessory supplied as a replacement for the same part, worn or damaged.

That is exactly what a replacement drive belt is. The same article adds that RB travels with the NU pricing modifier and the appropriate informational modifiers.

One of GA, GY, GZ or KX is mandatory on every K0098 line. A52504 states that lines billed without one of the four are rejected as missing information. They are mutually exclusive alternatives, so exactly one goes on the line.

Why RA and RR do not belong on a belt line

RA and RR are the two modifiers most often appended to K0098 in error. Neither one fits a drive belt replacement.

• RA is for a whole item: DME MAC guidance defines RA as replacement of an entire item that was lost, stolen or irreparably damaged. It also appears on a first-month capped rental claim. A belt is a component, so RB is the correct part-level modifier.
• RR is a rental pricing modifier: RR and NU are mutually exclusive on the same line. Medicare pays nothing separate for repairs to a capped-rental power wheelchair during the rental period, because those costs sit inside the monthly payment. Once the beneficiary owns the chair, the belt is a purchased part with RB and NU.

Accuracy here does more than protect one payment. Incorrect modifier use can raise a fraud flag during CMS post-payment review. Check the current policy articles for Jurisdiction C (CGS) or Jurisdiction D (Noridian) before you submit.

Why the K0098 payment rate depends on your locality

K0098 is paid from the DMEPOS fee schedule that CMS updates each January, and the allowed amount shifts with the payment locality.

Inside a Competitive Bidding Area (CBA) the winning bid rate replaces it again. Prior-year figures are no help, so look the rate up fresh.

One trap catches new billers here. The CMS Physician Fee Schedule lookup tool excludes DME codes, so it returns nothing for K0098. Pull the current allowed amount from the CMS DMEPOS fee schedule files instead, or from your DME MAC’s fee schedule lookup at Noridian or CGS.

• Fee schedule source: the CMS DMEPOS fee schedule, updated each January.
• Geographic adjustment: rates differ by payment locality, so rural and urban allowed amounts for the same code can differ.
• Competitive Bidding: in a CBA the winning bid rate applies. Check whether your service area is one before you bill.
• Coinsurance: Part B covers 80% of the allowed amount after the annual deductible. The beneficiary or a secondary insurer owes the other 20%.

Watch the remittance advice Medicare returns on these claims, because it is the fastest read on whether payment is landing at the right rate.

When an ERA shows a reduced amount, check the adjustment reason code. It usually points to a locality difference or a Competitive Bidding rate.

Related HCPCS codes you may need on the same claim

A single repair visit often touches more than one code, and each discrete part gets billed on its own. The neighbours below come up most often on power wheelchair claims.

The AAPC Codify HCPCS lookup is worth a check when you need the full descriptor for one of them.

When several parts are replaced on one date of service, each code takes its own line on the CMS-1500 and its own modifiers. Bundling two components under a single K0098 line is a common error, and it usually ends in a rejection.

Repair labor is billed separately from the part, in 15-minute units under K0739, and only on beneficiary-owned equipment.

Seven errors that sink most K0098 claims

K0098 claims fail for predictable reasons, and the denial codes that come back name most of them. These seven cause the bulk of the rework.

• A missing or stale order: a verbal order, or one signed more than 12 months before the service date, is usually not enough. Check that the order date lines up with the claim.
• The wrong replacement modifier: RA or RR on a belt line is a frequent mismatch. A belt is a part, so the line takes RB with NU. Confirm the chair is beneficiary-owned first.
• No coverage modifier: a line without GA, GY, GZ or KX is rejected as missing information. Pick the one that matches the coverage position before the claim goes out.
• Lapsed accreditation: if accreditation expires between the service date and submission, Medicare denies the claim. Keep renewal dates on the practice calendar.
• Bundled components: two distinct parts under one K0098 line triggers an edit. Each component needs its own code and line entry.
• Unchecked Competitive Bidding status: billing the standard rate inside a CBA produces an automatic downward adjustment. Check the CMS CBA list before you quote a patient their share.
• Thin documentation: post-payment audits often end in recoupment when the supplier cannot produce the order and the delivery record. Retain both for at least seven years.

Before you submit: A five-line check

Run this over the claim before it leaves the billing system. It takes under a minute per line.

• The practitioner order is signed and dated before the delivery date.
• Delivery is confirmed in writing, on the date you are billing as the service date.
• The line reads K0098 with RB, NU and one of GA, GY, GZ or KX.
• Accreditation and Medicare enrollment are both current on that service date.
• Labor sits on its own K0739 line, counted in 15-minute units.

A medical claims management system that validates required fields and keeps the order on the patient record catches most of these before submission. The rest come down to habit: same checks, same order, every claim.

How Pabau keeps K0098 documentation audit-ready

Most K0098 denials are documentation and modifier problems, and both get settled before the claim leaves the building.

Suppliers working from spreadsheets keep the practitioner order in one place and the modifier decision in another. When an audit letter arrives months later, someone has to rebuild the file by hand.

Practice management software like Pabau holds that record in one patient file instead. Digital forms capture the practitioner’s order and the necessity notes at the point of care.

Every entry is timestamped and attributed to the person who wrote it, so the audit trail already exists when a DME MAC asks for it.

Pabau’s claims management then pre-fills the CMS-1500 from that record and checks the required fields are complete before submission.

On the US pipeline it also runs real-time eligibility checks, posts ERA remittances, and tracks claim status. You still pick the modifiers yourself. You stop losing claims to a blank field or a missing order.

Keep every DME claim audit-ready

Pabau pre-fills the CMS-1500 from the patient record, validates the required claim fields, and tracks claim status after submission. Your orders, delivery records and remittance data stay in one place.

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Conclusion

K0098 is a small code with a narrow job, and the difficulty never sits in the code itself. It sits in the four things around it: a current order, the RB and NU pair, one coverage modifier, and the locality rate. Line those up and the belt gets paid at the first pass.

The suppliers who stop reworking these claims are rarely the ones who memorized the modifier table. They are the ones whose system will not let an incomplete line out the door.

Book a demo to see how Pabau keeps DME orders, delivery records and claim status in one place.

Continue your research

Need a framework for handling claim denials systematically? Denial management in healthcare walks through root-cause analysis and workflow fixes for recurring denial patterns.

Want to read a Medicare remittance properly? Electronic remittance advice explains ERA file formats, adjustment codes, and how to reconcile Medicare payments.

Looking for the wider Medicare billing picture? Medicare billing covers enrollment, claim submission and the rules that apply across Part B services.

Want a broader compliance reference? Medical billing compliance requirements covers documentation standards, payer audits, and supplier obligations across DME and other claim types.

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