Q0509 HCPCS code: Miscellaneous supply or accessory for use with any implanted ventricular assist device for which payment was not made under medicare part a
Q0509 is the HCPCS Level II code for miscellaneous supply or accessory for use with any implanted ventricular assist device for which payment was not made under medicare part a. In 2024 Medicare paid an average of $1,210.10 per service for Q0509 across 8,273 services. Its Medicare coverage code is D (Special coverage instructions apply): Medicare covers it when its national or local coverage criteria are met. The NCCI unit limit is 2 per day on outpatient hospital claims. Medicare volume rose 5% from 2022 to 2024 (7,866 to 8,273 services). In 2024, about 12 clinicians billed Medicare for Q0509 for 1,061 beneficiaries; Florida, Ohio, Tennessee accounted for 77% of services.
Code details
| Field | Value |
|---|---|
| Section | Q codes — Temporary codes |
| Coverage code | D — Special coverage instructions apply |
| Pricing indicator | 46 — Priced by the Medicare contractor (no national fee) |
| BETOS category | D1F — Prosthetic and orthotic devices |
| Added | 2013-04-01 |
| Last action effective | 2013-04-01 |
Who bills Q0509 (2024)
| Measure | Value |
|---|---|
| Clinicians billing (by place of service) | 12 |
| Medicare beneficiaries | 1,061 |
| States with claims | 5 |
| Share of services in top 3 states (Florida, Ohio, Tennessee) | 77% |
Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.
Medicare utilization for Q0509, 2022–2024
| Year | Services | Beneficiaries | Avg. allowed | Avg. paid |
|---|---|---|---|---|
| 2022 | 7,866 | 1,181 | $1,229.09 | $978.12 |
| 2023 | 7,418 | 1,191 | $1,595.78 | $1,268.35 |
| 2024 | 8,273 | 1,061 | $1,522.40 | $1,210.10 |
States with the most Q0509 services (2024)
| State | Services | Avg. paid |
|---|---|---|
| Florida | 3,173 | $1,337.45 |
| Ohio | 1,779 | $32.02 |
| Tennessee | 1,367 | $1,827.89 |
| California | 1,101 | $910.11 |
| Indiana | 834 | $2,622.45 |
NCCI unit limits (MUE)
| Claim type | Max units per day | Rationale |
|---|---|---|
| outpatient hospital claims | 2 | Clinical: Data |
| practitioner claims | 2 | Clinical: Data |
What changed for Q0509
- 2013-04-01: Q0509 added to HCPCS Level II
- Next scheduled CMS quarterly update (HCPCS and DMEPOS fee schedule): 2027-01-01
Frequently asked questions
What is HCPCS code Q0509?
Q0509 is the HCPCS Level II code for miscellaneous supply or accessory for use with any implanted ventricular assist device for which payment was not made under medicare part a. Short descriptor: "Mis sup/ac imp vad nopay med".
How much does Medicare pay for Q0509?
In 2024, the average Medicare payment was $1,210.10 per service (average allowed $1,522.40).
Does Medicare cover Q0509?
Coverage code D — Special coverage instructions apply. Medicare covers it when its national or local coverage criteria are met.
How many units of Q0509 can be billed per day?
2 on outpatient hospital claims; 2 on practitioner claims (NCCI medically unlikely edits).
Related Q05 codes
- Q0500 — Filters for use with electric or electric/pneumatic ventricular assist device, replacement only ($36.71–$40.36)
- Q0501 — Shower cover for use with electric or electric/pneumatic ventricular assist device, replacement only ($613.75–$675.13)
- Q0502 — Mobility cart for pneumatic ventricular assist device, replacement only ($781.39–$859.54)
- Q0503 — Battery for pneumatic ventricular assist device, replacement only, each ($1,562.84–$1,719.11)
- Q0504 — Power adapter for pneumatic ventricular assist device, replacement only, vehicle type ($824.68–$907.15)
- Q0506 — Battery, lithium-ion, for use with electric or electric/pneumatic ventricular assist device, replacement only ($1,026.54–$1,129.20)
- Q0507 — Miscellaneous supply or accessory for use with an external ventricular assist device
- Q0508 — Miscellaneous supply or accessory for use with an implanted ventricular assist device
- Q0510 — Pharmacy supply fee for initial immunosuppressive drug(s), first month following transplant
- Q0511 — Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period
- Q0512 — Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period
- Q0513 — Pharmacy dispensing fee for inhalation drug(s); per 30 days
Building a device that would bill under a code like this? Caduvo matches a device description to HCPCS/CPT codes, Medicare coverage and payment, and the FDA pathway in one report.
Next steps
- Run a reimbursement report for a device billed under Q0509
- Watch Q0509 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for Q0509
Sources: CMS HCPCS Level II release October 2026; CMS DMEPOS fee schedule; CMS NCCI MUE tables; CMS Medicare utilization (physician and DME supplier files); CMS Medicare Coverage Database articles. Fees are Medicare allowables, not commercial rates. Not billing or legal advice.