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Last Updated: July 31, 2026
Key takeaways
HCPCS code A4860 describes disposable catheter tips for peritoneal dialysis, billed per 10 units, not per individual tip.
A4860 is an active HCPCS Level II supply code for 2026, maintained by CMS in the A-series medical and surgical supplies range.
Billing errors most often stem from unit miscounting, since submitting 10 tips as 10 units instead of 1 triggers audits and denials.
Practice management software like Pabau checks that a claim carries the insurer-required fields before it’s sent and gives billing teams a live status dashboard.
Most peritoneal dialysis billing errors don’t come from wrong codes. They come from the “per 10” unit definition buried in the A4860 description that billers misread on first encounter. HCPCS code A4860 is the correct code for disposable catheter tips used in peritoneal dialysis. It covers 10 tips per billing unit, so submitting one unit means claiming 10 tips, not one.
This guide covers the official description, the 2026 fee schedule, and Medicare and Medicaid coverage criteria. It also covers claims management software integration points and the related HCPCS codes billers need alongside A4860.
What the official A4860 descriptor covers
A4860 sits in the A-series of HCPCS Level II codes. The Centers for Medicare and Medicaid Services (CMS) maintains this series for medical and surgical supplies. The table below captures all reference fields a biller needs before submitting a claim.
What A4860 covers in day-to-day peritoneal dialysis care
Peritoneal dialysis (PD) replaces kidney function by filtering waste through the peritoneal membrane inside the abdomen. Each exchange cycle requires sterile catheter tips to connect and disconnect the dialysate bag from the patient’s PD catheter. These tips are single-use. Reusing them risks contamination and peritonitis.
HCPCS code A4860 covers those disposable catheter tips. The supply is medically necessary for any patient on home or facility-based PD who completes manual exchanges (CAPD) or automated exchanges (APD) using a cycler. Typical consumption runs 2 to 4 tips per exchange, with most patients performing 4 to 6 exchanges daily.
The “per 10” billing unit matters because payers process claims at that level. A patient using 28 tips in a week generates 2.8 billing units. Billers round to the nearest whole number or follow MAC-specific rounding guidance, since fractional units are not accepted. Always verify rounding rules with the relevant Medicare Administrative Contractor (MAC) before submission.
- CAPD (continuous ambulatory PD): typically 4 exchanges per day, each requiring 1-2 catheter tips
- APD (automated PD with a cycler): overnight cycling may require fewer manual connections but still uses disposable tips for setup and drain
- Emergency or backup exchanges: additional tips may be dispensed when cycler malfunction requires manual exchanges
Some patients also monitor for infection with ammonia test strips, billed under a separate code, A4774, rather than folded into the A4860 order.
How Medicare reimburses A4860 in 2026
HCPCS code A4860 carries no separately payable rate on the DMEPOS fee schedule. CMS lists its payment category as “bundled or not covered.”
Medicare pays for the catheter tips through the dialysis facility’s bundled per-treatment rate under the ESRD Prospective Payment System (PPS) instead. An independent DME supplier generally can’t bill Medicare Part B directly for A4860.
ESRD beneficiaries make up nearly the entire population using this code. Confirm the current payment category against the CMS DMEPOS fee schedule files before assuming any separate DME reimbursement applies.
The table below summarizes how the fee schedule and the ESRD PPS bundled rate interact for this code. It lists the structure rather than a specific dollar figure, since rates change annually.
For commercial payers and Medicaid, rates are negotiated separately and vary by state. Medicaid DME fee schedules are administered at the state level.
Always check the patient’s specific coverage plan before estimating reimbursement. When a facility collects that coinsurance directly from the patient, HIPAA compliant payment processing keeps the transaction secure and properly documented.
When Medicare and Medicaid cover A4860
Medicare covers HCPCS code A4860 under Medicare Part B for beneficiaries with end-stage renal disease (ESRD). These beneficiaries must perform peritoneal dialysis at home or in an outpatient facility.
Since January 1, 2011, Medicare has paid the ESRD facility directly under the bundled ESRD PPS rate for essentially all of these patients. CMS calls this policy Method I. The facility must furnish all dialysis equipment and supplies, including catheter tips, no matter which party dispenses them.
The core coverage requirement is still a documented ESRD diagnosis with an active peritoneal dialysis prescription from the treating nephrologist. Sound medical documentation requirements must be met before any claim goes out, whichever entity submits it.
- Documented ESRD diagnosis: ICD-10-CM code N18.6 (end-stage renal disease) on the claim
- Active PD prescription: physician order for peritoneal dialysis in the patient record
- Facility billing under ESRD PPS: the dialysis facility, not an independent DME supplier, is the billing entity for essentially all ESRD patients under Method I
- Medical necessity: supply quantities must reflect the prescribed dialysis regimen and documented exchange frequency
- Independent DME billing exception: a Medicare-enrolled DMEPOS supplier may bill directly and accept assignment for the rare non-ESRD patient. ESRD beneficiaries account for nearly all A4860 use, so this exception rarely applies
Medicaid coverage for A4860 varies by state. Some states reimburse at or near Medicare rates. Others use different fee schedules or require prior authorization for ongoing dialysis supply claims.
Verifying coverage with the patient’s state Medicaid program before dispensing is the safest approach. Maintaining medical office billing compliance records is essential for audit defense when Medicaid reviews supply claims.
Pro Tip
ESRD PPS bundling is the default rule for A4860, and it rarely has exceptions. Medicare pays the dialysis facility one bundled rate that already includes catheter tips for nearly every patient who uses this code. An independent DME supplier shouldn’t expect a separate Part B payment as a result. That only changes if the patient is confirmed to fall outside the ESRD population.
How to bill A4860 without triggering a denial
Correct unit reporting is the single biggest source of A4860 claim errors. One billing unit equals 10 catheter tips. If a patient receives 30 tips during a supply run, the claim should show 3 units of A4860, not 30.
Submitting 30 units for 30 tips is one of the most common peritoneal dialysis supply billing mistakes. It will trigger a medical review or automated denial.
How an A4860 claim moves from delivery to payment
Understanding the payment path helps explain why the unit count matters so much. Here’s the sequence for a typical ESRD patient on peritoneal dialysis:
- The supplier or facility dispenses the catheter tips and logs the quantity against the patient’s PD prescription.
- The dialysis facility rolls that supply into its monthly ESRD PPS bundled claim, rather than billing A4860 as a separate line.
- Medicare pays the bundled rate to the facility, which then bills the patient or secondary payer for any remaining coinsurance.
- The facility, not the DME supplier, carries the documentation burden if a MAC later audits the claim.
Who gets paid: DME suppliers, home health agencies, or the facility?
Medicare’s ESRD PPS bundling rule decides who gets paid for A4860, no matter which provider type dispenses the supply. Accurate billing workflows depend on recognizing that the dialysis facility, not the dispensing party, is usually the entity Medicare pays.
- DME suppliers: CMS’s ESRD PPS consolidated billing list marks A4860 as not payable to DME suppliers for ESRD patients. A supplier that dispenses the tips must look to the dialysis facility for payment rather than filing its own Medicare Part B claim
- Home health agencies (HHAs): ESRD PPS bundling applies whether or not the patient has an open home health episode. A4860 is not a home health consolidated billing item, so an HH episode does not change who gets paid
- Dialysis facilities: the facility bills for the peritoneal dialysis treatment under the ESRD PPS bundled rate, which already includes catheter tips and other routine supplies. No separate line item is billed for A4860 within that bundle
For the rare non-ESRD claim, the AAPC HCPCS code lookup can help confirm product-specific coding for supply items. The PDAC (Pricing, Data Analysis and Coding) contractor offers the same verification. Confirm modifier requirements with the relevant MAC before submitting any standalone claim.
Practices juggling dialysis supply billing alongside a broader service mix benefit from EHR integration. It keeps supply codes, quantities, and patient prescriptions linked in one record. That connection cuts the risk of unit miscounting across multi-supply orders.
A quick checklist before you submit an A4860 claim
Run through this before the claim goes out, especially on a new patient’s first supply order:
- Confirm the unit count reflects total tips divided by 10, rounded per the MAC’s guidance
- Confirm a physician order for peritoneal dialysis is on file and dated correctly
- Confirm the dialysis facility, not the DME supplier, is the one billing for an ESRD patient
- Confirm the ESRD diagnosis code, N18.6, appears on the claim
- Confirm a home health episode hasn’t been used to reroute billing, since it shouldn’t change who bills
Which other HCPCS codes come up alongside A4860?
HCPCS code A4860 covers only catheter tips, not the rest of a peritoneal dialysis supply order. A complete order typically involves several A-series codes, and selecting the wrong one for a different supply component is a common audit finding.
Hemodialysis patients rely on an entirely separate code, A4870, for equipment installation work that never applies to peritoneal dialysis. The table below lists the most frequently billed codes that do apply, and the specific supply each one covers.
Verify each related code’s status before submitting, since HCPCS descriptions and validity change over time. The A4900 series has been revised repeatedly, and CMS deleted A4900 and A4901 back in 2002.
CMS’s quarterly HCPCS update lists every current addition, revision, and deletion, so check it before billing a code you haven’t used recently. Submitting a retired or superseded code triggers an automatic claim rejection.
The billing mistakes that trigger most A4860 denials
These four mistakes show up most often in MAC audit findings and biller community reports for peritoneal dialysis supply codes.
Billing per tip instead of per 10
Billing one unit per catheter tip, instead of one unit per 10 tips, is the most common A4860 error. A monthly supply of 120 tips should be billed as 12 units. Submitting 120 units for the same supply triggers an automatic overpayment flag. Double-check the unit calculation before every claim.
Skipping the physician order on file
Medicare requires a physician order and evidence of an active peritoneal dialysis regimen. Claims submitted without a documented order on file are denied at the MAC level.
Maintaining strong patient data security and record-keeping practices ensures documentation is retrievable during audits. Keep the prescribing nephrologist’s order, the patient’s dialysis schedule, and the supply delivery receipt in the same file.
Filing a standalone Part B claim instead of the facility
The most common denial here happens when a DME supplier submits a standalone Medicare Part B claim for an ESRD patient. A4860 isn’t separately payable to DME suppliers at all, and CMS’s ESRD PPS consolidated billing list confirms it. That bundled status is what triggers the denial, regardless of the place of service entered.
Getting the place of service code right still matters for the rare non-ESRD claim. Home dialysis patients need code 12, not an outpatient facility code such as 11 or 22. Even then, the correct code won’t rescue a claim that was never separately payable in the first place.
Assuming a home health episode changes who bills
A biller who sees a patient in an active home health episode may assume that status decides who bills for A4860. It doesn’t. ESRD PPS bundling applies to peritoneal dialysis supplies whether or not the patient has an open home health episode.
The dialysis facility remains the payable party either way. Checking home health consolidated billing rules for this code wastes time that a biller doesn’t have to spend. HIPAA-compliant documentation workflows that flag a patient’s ESRD status early save billing teams from chasing a question that was never in play.
Pro Tip
Run a monthly billing audit specifically for unit counts on A4860 claims. Pull all A4860 lines for the period and cross-reference the units submitted against the supply delivery logs. Any claim where submitted units exceed delivered units divided by 10 is a potential overpayment. Correct it before a MAC audit finds it.
How Pabau catches billing errors before they become denials
Pabau isn’t built specifically for DME suppliers or dialysis facilities. But the core problem in this article shows up across almost every specialty that bills insurance. A claim needs the right fields, in the right format, before a payer will pay it.
General practices and physical therapy practices that also bill Medicare for supply and service codes run into the same fields-and-format problem A4860 illustrates. Pabau’s claims management checks that a claim carries what the insurer requires, then gates the Send action until it does. That gives the billing team a status dashboard, so nothing sits unresolved.
That kind of check doesn’t replace understanding the ESRD PPS bundling rules above. It just catches the mechanical errors, like a missing field or a mistyped unit count, before they turn into a denial.
Catch claim errors before they’re denied
Pabau's claims management checks that a claim has what the insurer requires, then hands your billing team a status dashboard to track it.
Conclusion
The “per 10” unit definition in HCPCS code A4860 is where most peritoneal dialysis supply claims go wrong. The bigger risk is treating A4860 as a normal DME-supplier claim at all. For ESRD patients, Medicare pays the dialysis facility under the bundled ESRD PPS rate, not a separate Part B submission. Get the unit count right, document the physician order, and confirm the claim is routing through the correct payer before every submission.
Pabau’s claims management can catch that kind of error before a claim goes out. Book a demo to see how it fits a supply-heavy billing workflow.
Continue your research
Also billing a parenteral nutrition supply code? B4176 covers the same per-unit billing logic for amino acid solution used in home parenteral nutrition.
Coding a support surface instead of a dialysis supply? E0197 walks through the billing rules for air pressure pads used with hospital beds.
Collecting coinsurance directly from dialysis patients? HIPAA compliant payment processing shows how to keep card and portal payments secure and properly documented.
Still weighing your EMR options as a small practice? EMR for small practices compares eight systems on cost, billing features, and setup time.
Frequently asked questions
Can a DME supplier ever bill Medicare directly for A4860?
Yes, but only for the rare patient without end-stage renal disease. A Medicare-enrolled DMEPOS supplier can bill Part B and accept assignment in that case. Nearly every A4860 claim involves an ESRD patient, so this exception applies rarely.
How does the ESRD PPS bundled rate account for A4860?
It doesn’t. The ESRD PPS pays the facility one rate per treatment that already includes catheter tips and other routine supplies. A4860 doesn’t show up as its own paid line on a Medicare remittance for these patients.
What should DME suppliers do if they can’t bill A4860 directly?
Most still dispense the tips and bill the dialysis facility instead of Medicare. Keeping a delivery log and the physician’s order on file protects the supplier if the facility ever disputes the quantity supplied.
How do you appeal a denied A4860 claim?
Start with the denial code on the remittance advice. A bundling denial isn’t appealable, since the facility, not the supplier, is the payable party. Unit-count or missing-documentation denials can usually be corrected and resubmitted.
Does Medicaid require prior authorization for A4860 supplies?
It depends on the state. Some Medicaid programs authorize ongoing peritoneal dialysis supplies automatically once the diagnosis and prescription are on file, while others require periodic renewal. Check the specific state program before assuming coverage carries over.
