HCPCS code K0017 – Detachable, adjustable height armrest

Key takeaways

HCPCS code K0017 covers a detachable, adjustable height armrest base, replacement only, each, under Medicare Part B.

Replacement is a coverage condition, so an initial armrest issue bills E0973 or comes bundled into the chair allowance.

Coverage runs through LCD L33792, which sets a two-part test on arm height and daily wheelchair use.

Modifier RB marks a part replaced during a repair, while RA covers replacing the whole item.

Practice management software like Pabau tracks HCPCS codes on each order and flags incomplete required fields before submission.

Every word in the K0017 descriptor narrows what you can bill

The official long descriptor reads Detachable, adjustable height armrest, base, replacement only, each. CMS maintains it in the HCPCS Level II code set, under the K-series for wheelchair accessories.

Each phrase in that string takes an option off the table.

• Detachable. The armrest base comes away from the wheelchair frame.
• Adjustable height. The arm can be repositioned vertically for the patient.
• Base. Only the base component, so the upper portion and the pad are out.
• Replacement only. The part replaces one that was already in service.
• Each. One unit per line, so a left and right base means two units.

One line in that table decides more claims than the rest. K0017 pays for the base, and no other part of the arm. So before you assign it, put hands on the part and name the component in the order.

The part you replace decides between K0017, K0018, and K0019

Start with the component, not the product name. K0017 is the base, K0018 is the upper portion, and K0019 is the arm pad.

If the arm has no height adjustment, K0015 is your code, and it is not limited to replacements. Fixed adjustable-height arms supplied as a pair go to K0020 instead.

Read the chain below from the top, because two questions have to resolve before K0017 is even in play.

These parts look alike on a shelf, which is how the wrong code gets picked. When a product could reasonably fall under two codes, ask the PDAC contractor for a coding verification.

A PDAC letter names the code for that manufacturer and model, and it holds up under audit. You can also work back through the wider HCPCS code library to see where the K-series sits.

Medicare pays only when the LCD test is met

Picking the code is the easy half. Coverage comes from LCD L33792, Wheelchair Options and Accessories, applied by your DME MAC. It does not treat an adjustable-height arm as automatically reasonable and necessary.

Two conditions have to hold, and both belong in the file before delivery.

The two-part test for adjustable height arms

• The patient needs an arm height that nonadjustable arms cannot provide.
• The patient spends at least two hours a day in the wheelchair.

Neither condition is met by simply saying so. A note reading “patient requires adjustable arms” fails the first condition. It never says what height the patient needs, or why a fixed arm misses it. For the second, record the daily hours as the clinician described them.

On top of that test, the general conditions for any wheelchair accessory still apply:

• The patient has a Medicare-covered wheelchair that serves as the base equipment.
• The old base is worn, broken, or unsafe, and the record says so.
• A treating practitioner ordered the replacement, dated on or before delivery.
• You meet the DMEPOS supplier standards at 42 CFR 424.57.
• No covered Part A stay is running, since Part B DME coverage pauses during one.

Initial issue belongs to E0973, not K0017

K0017 never covers the first armrest on a chair. The initial-issue code is E0973, which describes a complete detachable, adjustable height armrest assembly. It is an E-code, so the whole K-series is the wrong place to look.

For a manual wheelchair, the arms often are not separately payable at all, because the base allowance already includes them. Billing K0017 in either scenario misuses the replacement-only designation, and that is the pattern reviewers look for.

Complete documentation is what carries the claim through an audit

Coding it right is only half the job. Reviewers deny replacement-part claims on paperwork far more often than on coding. So build the file as if someone will read it in three years, because they might. Six documents do most of the work.

• Practitioner order. Written or electronic, dated on or before delivery, naming the replacement armrest base.
• Medical necessity note. The diagnosis, the functional limitation, and the arm height the patient needs.
• Condition of the old part. What failed, and why, such as wear over the expected lifespan or accidental damage.
• Proof of delivery. Signed and dated by the patient or an authorized representative.
• Face-to-face evaluation. Where the LCD calls for one, a recent exam by the ordering practitioner.
• Base wheelchair record. Its HCPCS code and original supply date, showing the chair qualifies.

Keep all of it for at least seven years. Audits open long after payment. A document missing at that point means repaying the claim, even when the part was clinically appropriate. A shared checklist inside software for DME billers catches a missing proof of delivery before submission, not after a denial.

Modifiers tell the payer what kind of replacement this is

With the file in order, the modifier is next. RB is the one most K0017 lines need, because it marks a part replaced during a repair.

A failed armrest base is exactly that. RA is its counterpart, used when you replace an entire item rather than one component.

KX is an attestation, so treat it like one

Appending KX says the coverage criteria are met and documented in your file. That is a statement on a federal claim, so it carries weight beyond the payment. Check the two-part LCD test and the order date before it goes on the line.

How a K0017 claim moves from order to payment

The path is short, and each step leaves something the next one needs. Walk it once in this order and the failure points stand out.

1. The treating practitioner orders the replacement base, dated on or before delivery.
2. You verify Part B eligibility, secondary coverage, and the base chair on file.
3. The part is delivered, and the patient signs the proof of delivery.
4. The claim goes out on a CMS-1500, or the 837P electronically, with place of service 12 for the home.
5. Your DME MAC prices the line, applies edits, and either pays or returns a reason code.

Step four trips up more claims than the rest. A wrong place of service sends an otherwise clean line to manual review, so confirm it against your MAC’s instructions.

Units matter here too. K0017 is billed each. A left and right replacement in one episode goes on two lines, not one line with a quantity of two. Some MACs accept quantity billing for this code, so check yours before you combine them.

What Medicare pays for K0017 in 2026, and where to check

No single figure answers this. CMS publishes an allowed amount for K0017 in the DMEPOS fee schedule. Your DME MAC then applies state and locality pricing. So the number that matters is the one for the patient’s service area, on the date of service.

Competitive bidding is not part of that math right now. Contracts under the DMEPOS Competitive Bidding Program expired on January 1, 2024, and CMS has not awarded new ones since.

Until it does, payment follows the fee schedule amount, updated for the consumer price index, rather than a contract rate.

Pull the current figure from the CMS DMEPOS fee schedule files, or from your DME MAC’s own lookup tool. The Physician Fee Schedule search tool will not help you here, because it does not carry K-codes.

Rates also change mid-year on occasion, so check at the time of billing rather than working from a saved spreadsheet.

Run this check before you submit

The rules above collapse into seven yes-or-no answers. Work through them while the order is open, because each one is cheap now and expensive after a denial.

• Is the order signed and dated on or before the delivery date?
• Does the note name the arm height the patient needs, and why a fixed arm misses it?
• Is daily wheelchair use of two hours or more recorded?
• Does the file describe what failed on the old base?
• Is the proof of delivery signed and filed?
• Is RB on the line, because the base was replaced during a repair?
• Are a left and right replacement on separate lines?

Seven answers take one pass. They get you closer to a clean claim than checking after the remittance arrives.

Three mistakes that keep costing suppliers

• Billing an initial issue. The first armrest is E0973, or it is bundled into the chair allowance.
• Appending KX early. The modifier goes on after the file supports it, not while you are still chasing the note.
• Coding the wrong component. An upper portion is K0018 and a pad is K0019, however similar the parts look.

How practice management software keeps DME claims clean

All of this is easy on one order and hard on fifty. Most DME billing runs across two systems that never speak to each other. The order and the clinical note live in one, and the claim gets keyed into the other. Nobody notices the missing proof of delivery until the reason code turns up.

Practice management software like Pabau keeps the order, the note, and the claim on one record. You attach the HCPCS code to the item as you dispense it. The claim screen then shows which required fields are still empty. Payer, provider, and billing detail sit together, so the file is ready when a reviewer asks for it.

Claims then go out electronically, and the remittance posts back against the same record. Your team can see which lines paid, which paid in part, and which need a second look. You stop rebuilding the story from three screens.

Reduce DME claim denials with cleaner billing workflows

Pabau tracks the HCPCS code on every DME order and flags incomplete required fields before the claim reaches the payer. See how that fits your billing team.

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Conclusion

K0017 is a narrow code, and the narrowness is the whole story. Confirm you are replacing a base. Confirm the height requirement and the two hours a day. Then bill it, with RB on the line.

Suppliers with the lowest denial rates are rarely the fastest at appeals. They are the ones whose file was complete on the day the order was written. The claim never had to come back.

Tracking codes and documents across a book of DME orders is where most billing teams slow down. Book a demo to see how Pabau keeps the code, the note, and the claim on one record.

Continue your research

Need a structured approach to DME claim documentation? Medical billing compliance covers the documentation standards and audit-readiness practices that apply across DME and other claim types.

Seeing the same denials come back? Denial management in healthcare explains how to find root causes, build an appeals workflow, and lift first-pass payment rates.

Want the full billing cycle, from order to payment? Revenue cycle management shows how each step connects and where DME suppliers lose reimbursement.

Checking coverage before the part ships? Insurance eligibility verification walks the checks that catch inactive Part B and secondary payers early.

Building a charge capture process? Superbill explains how a structured charge sheet validates codes and modifiers before submission.

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