A4630 HCPCS code: Replacement batteries, medically necessary, transcutaneous electrical stimulator, owned by patient
A4630 is the HCPCS Level II code for replacement batteries, medically necessary, transcutaneous electrical stimulator, owned by patient. The 2026 Medicare DMEPOS fee schedule pays $6.79 to $8.88 (NU, new equipment, purchased) 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. Its average fee ranks 8 of 13 A46 codes billed NU (family range $2.30–$66.87).
Code details
| Field | Value |
|---|---|
| Section | A codes — Transportation, medical/surgical supplies and miscellaneous |
| Coverage code | D — Special coverage instructions apply |
| Pricing indicator | 32 — DMEPOS: inexpensive or routinely purchased item |
| BETOS category | D1E — Other durable medical equipment |
| Added | 1991-01-01 |
| Last action effective | 2006-01-01 |
2026 Medicare DMEPOS fee schedule for A4630
| Modifier | Meaning | Lowest state fee | Highest state fee | Ceiling | Floor |
|---|---|---|---|---|---|
| NU | new equipment, purchased | $6.79 | $8.88 | $8.88 | $7.55 |
| State | Modifier | Fee | Rural fee |
|---|---|---|---|
| AK | NU | $7.14 | — |
| AL | NU | $8.88 | — |
| AR | NU | $8.88 | — |
| AZ | NU | $8.81 | — |
| CA | NU | $7.55 | — |
| CO | NU | $8.88 | — |
| CT | NU | $8.88 | — |
| DC | NU | $8.09 | — |
| DE | NU | $8.09 | — |
| FL | NU | $8.88 | — |
| GA | NU | $7.55 | — |
| HI | NU | $7.71 | — |
| IA | NU | $7.55 | — |
| ID | NU | $8.88 | — |
| IL | NU | $7.55 | — |
| IN | NU | $7.55 | — |
| KS | NU | $7.55 | — |
| KY | NU | $8.88 | — |
| LA | NU | $8.88 | — |
| MA | NU | $8.88 | — |
| MD | NU | $8.12 | — |
| ME | NU | $8.88 | — |
| MI | NU | $7.55 | — |
| MN | NU | $7.55 | — |
| MO | NU | $7.55 | — |
| MS | NU | $8.88 | — |
| MT | NU | $8.88 | — |
| NC | NU | $8.88 | — |
| ND | NU | $8.88 | — |
| NE | NU | $7.55 | — |
| NH | NU | $8.88 | — |
| NJ | NU | $8.09 | — |
| NM | NU | $7.55 | — |
| NV | NU | $8.81 | — |
| NY | NU | $7.55 | — |
| OH | NU | $7.55 | — |
| OK | NU | $7.55 | — |
| OR | NU | $8.88 | — |
| PA | NU | $7.89 | — |
| PR | NU | $6.79 | — |
| RI | NU | $8.88 | — |
| SC | NU | $8.88 | — |
| SD | NU | $8.88 | — |
| TN | NU | $8.88 | — |
| TX | NU | $8.88 | — |
| UT | NU | $8.88 | — |
| VA | NU | $8.88 | — |
| VI | NU | $7.55 | — |
| VT | NU | $8.88 | — |
| WA | NU | $8.88 | — |
| WI | NU | $7.55 | — |
| WV | NU | $7.55 | — |
| WY | NU | $8.88 | — |
How the A4630 fee compares
| Measure | Value |
|---|---|
| Rank among 13 A46 codes billed NU (lowest = 1) | 8 |
| Family fee range (average of state fees) | $2.30–$66.87 |
| Rural fee uplift | — |
Medicare policy articles for this code
- A52520: Transcutaneous Electrical Nerve Stimulators (TENS) - Policy Article (CGS Administrators, LLC (DME MAC) Noridian Healthcare Solutions, LLC (DME MAC)) — mentions this code in its coding guidance
What changed for A4630
- 2026-01-01: Average state fee (NU) rose 2.0%: $8.12 to $8.28
- 1991-01-01: A4630 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 A4630?
A4630 is the HCPCS Level II code for replacement batteries, medically necessary, transcutaneous electrical stimulator, owned by patient. Short descriptor: "Repl bat t.e.n.s. own by pt".
How much does Medicare pay for A4630?
Under the 2026 DMEPOS fee schedule, non-rural state fees are NU (new equipment, purchased): $6.79–$8.88. Rural fees can be higher.
Does Medicare cover A4630?
Coverage code D — Special coverage instructions apply. Medicare covers it when its national or local coverage criteria are met.
Did the Medicare fee for A4630 change in 2026?
The average non-rural state fee for NU moved from $8.12 in 2025 to $8.28 in 2026 (+2.0%). CMS's next quarterly HCPCS and DMEPOS update takes effect January 1, 2027.
Related A46 codes
- A4600 — Sleeve for intermittent limb compression device, replacement only, each
- A4601 — Lithium ion battery, rechargeable, for non-prosthetic use, replacement
- A4602 — Replacement battery for external infusion pump owned by patient, lithium, 1.5 volt, each ($5.31–$6.33)
- A4604 — Tubing with integrated heating element for use with positive airway pressure device ($49.31–$76.79)
- A4605 — Tracheal suction catheter, closed system, each ($23.31–$27.99)
- A4606 — Oxygen probe for use with oximeter device, replacement
- A4608 — Transtracheal oxygen catheter, each ($71.44–$85.73)
- A4611 — Battery, heavy duty; replacement for patient owned ventilator
- A4612 — Battery cables; replacement for patient-owned ventilator
- A4613 — Battery charger; replacement for patient-owned ventilator
- A4614 — Peak expiratory flow rate meter, hand held ($33.89–$40.68)
- A4615 — Cannula, nasal ($1.04–$1.25)
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Next steps
- Run a reimbursement report for a device billed under A4630
- Watch A4630 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for A4630
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.