Q0508 HCPCS code: Miscellaneous supply or accessory for use with an implanted ventricular assist device
Q0508 is the HCPCS Level II code for miscellaneous supply or accessory for use with an implanted ventricular assist device. In 2024 Medicare paid an average of $1,043.10 per service for Q0508 across 24,424 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 24 per day on outpatient hospital claims. Medicare volume rose 9% from 2022 to 2024 (22,424 to 24,424 services). In 2024, about 20 clinicians billed Medicare for Q0508 for 2,796 beneficiaries; Florida, Ohio, California accounted for 82% 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 Q0508 (2024)
| Measure | Value |
|---|---|
| Clinicians billing (by place of service) | 20 |
| Medicare beneficiaries | 2,796 |
| States with claims | 6 |
| Share of services in top 3 states (Florida, Ohio, California) | 82% |
Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.
Medicare utilization for Q0508, 2022–2024
| Year | Services | Beneficiaries | Avg. allowed | Avg. paid |
|---|---|---|---|---|
| 2022 | 22,424 | 2,928 | $1,011.11 | $804.66 |
| 2023 | 21,492 | 2,806 | $1,182.30 | $940.17 |
| 2024 | 24,424 | 2,796 | $1,311.69 | $1,043.10 |
States with the most Q0508 services (2024)
| State | Services | Avg. paid |
|---|---|---|
| Florida | 12,041 | $1,113.82 |
| Ohio | 5,330 | $32.59 |
| California | 2,540 | $859.25 |
| Tennessee | 2,227 | $1,581.67 |
| Indiana | 2,157 | $2,843.45 |
NCCI unit limits (MUE)
| Claim type | Max units per day | Rationale |
|---|---|---|
| outpatient hospital claims | 24 | Clinical: Data |
| practitioner claims | 4 | Clinical: Data |
What changed for Q0508
- 2013-04-01: Q0508 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 Q0508?
Q0508 is the HCPCS Level II code for miscellaneous supply or accessory for use with an implanted ventricular assist device. Short descriptor: "Mis sup/acc imp vad".
How much does Medicare pay for Q0508?
In 2024, the average Medicare payment was $1,043.10 per service (average allowed $1,311.69).
Does Medicare cover Q0508?
Coverage code D — Special coverage instructions apply. Medicare covers it when its national or local coverage criteria are met.
How many units of Q0508 can be billed per day?
24 on outpatient hospital claims; 4 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
- Q0509 — Miscellaneous supply or accessory for use with any implanted ventricular assist device for which payment was not made under medicare part a
- 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 Q0508
- Watch Q0508 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for Q0508
Sources: CMS HCPCS Level II release October 2025; 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.