Q0503 HCPCS code: Battery for pneumatic ventricular assist device, replacement only, each
Q0503 is the HCPCS Level II code for battery for pneumatic ventricular assist device, replacement only, each. The 2026 Medicare DMEPOS fee schedule pays $1,562.84 to $1,719.11 depending on the state. 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 3 per day on outpatient hospital claims. Its average fee ranks 6 of 6 Q05 codes (family range $37.42–$1,593.61).
Code details
| Field | Value |
|---|---|
| Section | Q codes — Temporary codes |
| Coverage code | D — Special coverage instructions apply |
| Pricing indicator | 38 — DMEPOS: orthotics, prosthetics, prosthetic devices and vision services |
| BETOS category | D1F — Prosthetic and orthotic devices |
| Added | 2005-10-01 |
| Last action effective | 2013-01-01 |
2026 Medicare DMEPOS fee schedule for Q0503
| Modifier | Meaning | Lowest state fee | Highest state fee | Ceiling | Floor |
|---|---|---|---|---|---|
| — | base fee | $1,562.84 | $1,719.11 | $1,907.70 | $1,430.77 |
| State | Modifier | Fee | Rural fee |
|---|---|---|---|
| AK | — | $1,562.84 | — |
| AL | — | $1,609.89 | — |
| AR | — | $1,609.77 | — |
| AZ | — | $1,562.84 | — |
| CA | — | $1,562.84 | — |
| CO | — | $1,622.02 | — |
| CT | — | $1,562.84 | — |
| DC | — | $1,562.84 | — |
| DE | — | $1,562.84 | — |
| FL | — | $1,609.89 | — |
| GA | — | $1,609.89 | — |
| HI | — | $1,562.84 | — |
| IA | — | $1,593.38 | — |
| ID | — | $1,562.84 | — |
| IL | — | $1,601.20 | — |
| IN | — | $1,601.20 | — |
| KS | — | $1,593.38 | — |
| KY | — | $1,609.89 | — |
| LA | — | $1,609.77 | — |
| MA | — | $1,562.84 | — |
| MD | — | $1,562.84 | — |
| ME | — | $1,562.84 | — |
| MI | — | $1,601.20 | — |
| MN | — | $1,601.20 | — |
| MO | — | $1,593.38 | — |
| MS | — | $1,609.89 | — |
| MT | — | $1,622.02 | — |
| NC | — | $1,609.89 | — |
| ND | — | $1,622.02 | — |
| NE | — | $1,593.38 | — |
| NH | — | $1,562.84 | — |
| NJ | — | $1,562.84 | — |
| NM | — | $1,609.77 | — |
| NV | — | $1,562.84 | — |
| NY | — | $1,562.84 | — |
| OH | — | $1,601.20 | — |
| OK | — | $1,609.77 | — |
| OR | — | $1,562.84 | — |
| PA | — | $1,562.84 | — |
| PR | — | $1,719.11 | — |
| RI | — | $1,562.84 | — |
| SC | — | $1,609.89 | — |
| SD | — | $1,622.02 | — |
| TN | — | $1,609.89 | — |
| TX | — | $1,609.77 | — |
| UT | — | $1,622.02 | — |
| VA | — | $1,562.84 | — |
| VI | — | $1,719.11 | — |
| VT | — | $1,562.84 | — |
| WA | — | $1,562.84 | — |
| WI | — | $1,601.20 | — |
| WV | — | $1,562.84 | — |
| WY | — | $1,622.02 | — |
How the Q0503 fee compares
| Measure | Value |
|---|---|
| Rank among 6 Q05 codes (lowest = 1) | 6 |
| Family fee range (average of state fees) | $37.42–$1,593.61 |
| Rural fee uplift | — |
NCCI unit limits (MUE)
| Claim type | Max units per day | Rationale |
|---|---|---|
| outpatient hospital claims | 3 | Clinical: CMS Workgroup |
| practitioner claims | 3 | Clinical: CMS Workgroup |
What changed for Q0503
- 2026-01-01: Average state fee rose 2.0%: $1,562.37 to $1,593.61
- 2005-10-01: Q0503 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 Q0503?
Q0503 is the HCPCS Level II code for battery for pneumatic ventricular assist device, replacement only, each. Short descriptor: "Battery pneum vad replacemnt".
How much does Medicare pay for Q0503?
Under the 2026 DMEPOS fee schedule, non-rural state fees are base (base fee): $1,562.84–$1,719.11. Rural fees can be higher.
Does Medicare cover Q0503?
Coverage code D — Special coverage instructions apply. Medicare covers it when its national or local coverage criteria are met.
Did the Medicare fee for Q0503 change in 2026?
The average non-rural state fee moved from $1,562.37 in 2025 to $1,593.61 in 2026 (+2.0%). CMS's next quarterly HCPCS and DMEPOS update takes effect January 1, 2027.
How many units of Q0503 can be billed per day?
3 on outpatient hospital claims; 3 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)
- 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
- 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
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Next steps
- Run a reimbursement report for a device billed under Q0503
- Watch Q0503 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for Q0503
Sources: CMS HCPCS Level II release October 2025; CMS DMEPOS fee schedule 2026; 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.