HCPCS code K0039 – H-style wheelchair leg strap

Key takeaways

K0039 is billed per strap: one H-style leg strap is one unit, so two straps are billed as two units.

K0038 and K0039 differ by strap style, not quantity. K0038 is a standard leg strap and K0039 is the H-style version.

Medicare Part B covers K0039 when medical necessity is documented. KX is required when the applicable LCD or billing article says so, so verify it for your DME MAC jurisdiction.

Check the current allowable in the CMS DMEPOS fee schedule for your state before billing, because rates change every year.

Pabau’s claims management software helps you track K0039 claims and their supporting documents from submission to payment.

HCPCS code K0039: Official description and code category

HCPCS code K0039 is the HCPCS Level II code for one H-style leg strap used on a wheelchair.

Its official descriptor is Leg strap, H style, each. It sits in the K0001–K0195 range for wheelchairs, components, and accessories.

K codes are temporary national codes that CMS created for the DME Medicare Administrative Contractors (DME MACs). CMS updates them through the HCPCS Level II files listed on CMS’s HCPCS overview. Coders new to DME claims can start with our guide to medical billing fundamentals.

The AAPC’s K0001–K0195 code range and the PGM Billing HCPCS tool both let you verify a descriptor for free. Checking K0039 there before a claim drops confirms the strap style and catches adjacent-code errors early.

What K0039 covers and what it does not

K0039 covers one H-style leg strap for a manual or power wheelchair. The strap positions and secures the user’s lower legs during wheelchair use. Its H-style design is what separates it from a standard leg strap, so confirm the style against the manufacturer’s product description before you code it.

Covered scenarios: An H-style leg strap dispensed as a separately billable wheelchair accessory, either with a new chair or as a replacement. Each strap is one unit.

Not billed under K0039: A standard, non-H-style leg strap, which goes under K0038. Straps that are part of a seating system billed under a different code. Accessories already bundled into the base wheelchair code.

• Bill one unit of K0039 for each H-style strap delivered
• A standard leg strap goes under K0038, even when it’s dispensed alongside an H-style strap
• Straps already included in a wheelchair accessory bundle shouldn’t be billed separately under K0039

K0039 vs K0038: Knowing which code to use

K0038 and K0039 are both billed per strap. The difference is the strap’s style: K0038 is a leg strap, each, and K0039 is an H-style leg strap, each. Neither descriptor describes a pair, so quantity never decides which code you pick.

Code from the product, not the count. Two H-style straps dispensed on the same date are two units of K0039 on one claim line. Splitting identical straps across two lines for one date can trip a duplicate-claim edit. Combine them into one line with the right unit count. The three checks below follow the order a coder works through a strap claim.

Billing scenarios for K0038 and K0039

These common delivery scenarios show how style and count translate into codes and units.

Related wheelchair accessory HCPCS codes

K0039 sits within a broader family of wheelchair accessory K codes. Coders dispensing multiple accessories in a single encounter should verify that none overlap or bundle with K0039. Replacement swing-away footrests, for example, bill separately under K0052. Each neighboring descriptor can be checked in our HCPCS reference for coders.

Medicare coverage and medical necessity criteria for K0039

Medicare Part B covers K0039 as a DME accessory when the item is medically necessary for the beneficiary’s condition. The treating practitioner must also document that need.

Coverage is governed by Local Coverage Determinations (LCDs) issued by the applicable Medicare Administrative Contractor (MAC). Noridian and CGS administer the DME MAC jurisdictions, and each publishes the wheelchair accessory LCDs for its regions. Always verify the LCD in effect for your jurisdiction before billing, as criteria are updated periodically.

General Medicare medical necessity criteria for wheelchair accessories such as K0039 typically include:

• The beneficiary uses a wheelchair covered under Medicare Part B
• The leg strap is needed to position or secure the beneficiary’s lower legs during wheelchair use
• The patient’s physician or treating practitioner has ordered the item in writing
• The documentation in the medical record supports the clinical need for leg positioning support
• The item is not already included (bundled) in the coverage of another wheelchair accessory or the base chair code

Ensuring DME billing compliance starts with verifying which MAC LCD applies to the claim before submission.

Documentation requirements for K0039

CMS and individual MACs require specific documentation to support a K0039 claim. Missing or incomplete records are a leading cause of denials and post-payment audits. The documentation set for submitting a clean claim for HCPCS code K0039 generally includes all of the following:

1. Written physician order: Signed by the treating practitioner, specifying the item (H-style leg strap), the quantity, the qualifying diagnosis, and the clinical rationale
2. Medical records establishing need: Chart notes documenting the beneficiary’s mobility limitations and the clinical reason the legs need positional support during wheelchair use
3. Certificate of Medical Necessity (CMN): Verify with your MAC whether current CMS policy requires a CMN for K0039, since requirements can change
4. Supplier records: Proof of delivery (POD) signed by the beneficiary or their authorized representative, with the item description, strap style, quantity, and date of service
5. Coverage criteria checklist: An internal record of which LCD criteria apply and that each one has been met. It also notes whether your jurisdiction requires KX

Retain all documentation for at least seven years. Recovery Audit Contractors (RACs) and Unified Program Integrity Contractors (UPICs) routinely target DME claims in post-payment audits. K0039 claims without contemporaneous physician orders are at high risk of recoupment.

Prior authorization requirements for HCPCS code K0039

As of the most recent CMS Prior Authorization for Certain DMEPOS Items list, K0039 is not among the accessories requiring mandatory prior authorization. However, this list changes and some payers impose prior authorization requirements independently of the CMS program. Always verify current PA requirements with the applicable MAC and any secondary or commercial payer before submission.

• Check the CMS Prior Authorization for Certain DMEPOS Items list at cms.gov for current status
• Confirm MAC-level requirements separately, as MAC guidance can change during the year
• Commercial payers and Medicaid MCOs frequently require prior authorization regardless of Medicare policy
• If PA is required and not obtained, the claim will typically deny with CARC code 197 (precertification/authorization/notification absent)

Medicare fee schedule and reimbursement rates for K0039

CMS publishes allowable amounts for K0039 in the DMEPOS fee schedule, which it updates at least once a year. Rates vary by state, by rural or non-rural area, and by whether the beneficiary lives in a competitive bidding area (CBA). No dollar rate is cited here because the allowable changes with each update.

To look up the current K0039 allowable:

1. Open the CMS DMEPOS fee schedule page and download the file for the current quarter
2. Find K0039 in the file and note its fee for your state
3. Use the rural or non-rural column that matches the beneficiary’s ZIP code

Key rate distinctions to understand: The fee schedule rate is per unit, so two H-style straps pay at two units. Accessories generally follow the payment method of the wheelchair base, so confirm whether the claim is a purchase or a rental. Always check whether the beneficiary’s ZIP code falls within a CBA before applying a rate.

Billing modifiers used with K0039

HCPCS code K0039 claims require specific modifiers to communicate coverage status, item condition, and acquisition method to Medicare and other payers. Using the wrong modifier, or omitting a required one, is a direct path to denial.

KX is required on K0039 when the applicable LCD or billing article says so. Verify the rule for your DME MAC jurisdiction before you bill. Where KX applies, add it only when the documentation supports every listed criterion. If the record falls short and you expect a denial, append GA instead, with a signed ABN on file before dispensing.

Common claim denial reasons for K0039 and how to avoid them

K0039 denials cluster around a handful of recurring issues. Tracking denial patterns through denial management strategies helps DMEPOS suppliers resolve the most frequent causes systematically rather than case by case.

How to appeal a denied K0039 claim

Medicare provides a five-level appeal process for denied DMEPOS claims. Most documentation-based denials are resolved at Level 1 (Redetermination) or Level 2 (Reconsideration) when the right records are submitted.

1. Level 1: Redetermination. Submit within 120 days of receiving the initial determination. Include the denial explanation, corrected claim data if applicable, and all supporting documentation the original claim lacked. The MAC generally issues a decision within 60 days.
2. Level 2: Reconsideration. If the redetermination is unfavorable, submit a request to a Qualified Independent Contractor (QIC) within 180 days. The QIC conducts an independent review and generally issues a decision within 60 days.
3. Levels 3–5: Administrative Law Judge hearing, Medicare Appeals Council review, and Federal District Court review. These levels apply when the amount in dispute meets the yearly thresholds and the dispute is not resolved at Levels 1 or 2.

For documentation-based denials, the most effective appeal includes a letter of medical necessity from the ordering physician. It should explicitly reference the LCD coverage criteria and sit alongside the original chart notes.

Medicaid and commercial payer coverage for K0039

Medicaid coverage for K0039 varies by state Medicaid program. Each state sets its own coverage criteria, prior authorization thresholds, and allowable amounts for DME accessories independently of Medicare. Some states mirror Medicare’s LCD criteria, while others apply more restrictive or more permissive standards. Never assume Medicare coverage rules transfer to Medicaid.

Commercial payers, Medicare Advantage plans, and managed Medicaid MCOs apply their own coverage policies for wheelchair accessories. These policies may require prior authorization, impose quantity limits, or exclude the code entirely for certain plan types. Always verify each payer’s policy through its provider portal or provider services line before dispensing.

• Medicaid: Confirm your state’s DME coverage policy and any state-specific prior authorization requirements
• Medicare Advantage: Plans must cover what Original Medicare covers but may apply their own authorization rules; check plan-specific policies
• Commercial: No universal rule applies, so treat each payer as a separate verification step in the billing workflow

How Pabau supports DME billing workflows

DMEPOS suppliers juggling multiple HCPCS codes across Medicare, Medicaid, and commercial payers need modifier requirements, documentation checklists, and claim status in one place. Pabau tracks each claim through its DME claims management software, from submission to payment. It also keeps audit-ready records for RAC and UPIC reviews.

For K0039, that means the order, the proof of delivery, and the strap count stay attached to the claim. Your team can check style and units against them before the claim drops, rather than after a denial.

Manage DME billing workflows without the spreadsheet juggling

Pabau’s claims management software helps you track modifier requirements, documentation, and claim status, and keeps your DMEPOS records audit-ready. See how it fits your billing workflow.

Book a demo

Conclusion

The delivery ticket decides a K0039 claim. If it names an H-style strap and the count, the code and the units follow, and an auditor can see why. Build that step into intake so nobody codes a strap from memory.

Modifiers are the part that changes by jurisdiction. Check your DME MAC’s LCD and billing article once, record whether KX applies, and reuse that answer on every strap claim.

To keep strap style, units and supporting records attached to every claim, book a demo and see how Pabau handles DME billing.

Continue your research

Need a broader grounding in DME billing rules? Medical billing fundamentals covers the end-to-end claim cycle from code selection through payment posting.

Seeing repeat denials across your DMEPOS claims? Denial management strategies explains how to track denial patterns and fix upstream causes systematically.

Want to improve first-pass claim rates? Submitting a clean claim walks through the documentation and edit checks that prevent rejections before they reach the payer.

Dispensing a standard leg strap instead? HCPCS code K0038 covers the non-H-style strap, with its own units and documentation rules.

Frequently asked questions