A4364 HCPCS code: Adhesive, liquid or equal, any type, per oz
A4364 is the HCPCS Level II code for adhesive, liquid or equal, any type, per oz. The 2026 Medicare DMEPOS fee schedule pays $3.14 to $9.38 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 2 per day on outpatient hospital claims. Medicare volume fell 26% from 2022 to 2024 (31,975 to 23,544 services). In 2024, 233 suppliers billed Medicare for A4364 (purchases), serving 1,697 beneficiaries; California, Texas, Florida accounted for 29% of services. Its average fee ranks 14 of 68 A43 codes (family range $0.05–$878.06).
Code details
| Field | Value |
|---|---|
| Section | A codes — Transportation, medical/surgical supplies and miscellaneous |
| Coverage code | D — Special coverage instructions apply |
| Pricing indicator | 37 — DMEPOS: ostomy, tracheostomy and urological supplies |
| BETOS category | D1F — Prosthetic and orthotic devices |
| Added | 1985-01-01 |
| Last action effective | 2003-01-01 |
2026 Medicare DMEPOS fee schedule for A4364
| Modifier | Meaning | Lowest state fee | Highest state fee | Ceiling | Floor |
|---|---|---|---|---|---|
| — | base fee | $3.14 | $9.38 | $4.19 | $3.56 |
| State | Modifier | Fee | Rural fee |
|---|---|---|---|
| AK | — | $3.14 | — |
| AL | — | $4.04 | — |
| AR | — | $4.19 | — |
| AZ | — | $4.19 | — |
| CA | — | $3.56 | — |
| CO | — | $4.19 | — |
| CT | — | $4.19 | — |
| DC | — | $4.19 | — |
| DE | — | $4.19 | — |
| FL | — | $3.75 | — |
| GA | — | $3.56 | — |
| HI | — | $3.35 | — |
| IA | — | $4.19 | — |
| ID | — | $4.19 | — |
| IL | — | $3.56 | — |
| IN | — | $3.56 | — |
| KS | — | $4.19 | — |
| KY | — | $4.19 | — |
| LA | — | $4.19 | — |
| MA | — | $4.11 | — |
| MD | — | $4.19 | — |
| ME | — | $4.19 | — |
| MI | — | $4.19 | — |
| MN | — | $4.19 | — |
| MO | — | $4.19 | — |
| MS | — | $4.19 | — |
| MT | — | $3.56 | — |
| NC | — | $3.56 | — |
| ND | — | $3.56 | — |
| NE | — | $4.19 | — |
| NH | — | $4.19 | — |
| NJ | — | $4.19 | — |
| NM | — | $4.19 | — |
| NV | — | $4.19 | — |
| NY | — | $4.19 | — |
| OH | — | $3.56 | — |
| OK | — | $4.19 | — |
| OR | — | $4.19 | — |
| PA | — | $4.19 | — |
| PR | — | $9.38 | — |
| RI | — | $4.11 | — |
| SC | — | $3.66 | — |
| SD | — | $3.56 | — |
| TN | — | $3.73 | — |
| TX | — | $3.86 | — |
| UT | — | $4.19 | — |
| VA | — | $4.19 | — |
| VI | — | $4.19 | — |
| VT | — | $4.19 | — |
| WA | — | $3.89 | — |
| WI | — | $3.56 | — |
| WV | — | $3.56 | — |
| WY | — | $3.56 | — |
How the A4364 fee compares
| Measure | Value |
|---|---|
| Rank among 68 A43 codes (lowest = 1) | 14 |
| Family fee range (average of state fees) | $0.05–$878.06 |
| Rural fee uplift | — |
Who bills A4364 (2024)
| Measure | Value |
|---|---|
| Suppliers billing rentals | — |
| Suppliers billing purchases | 233 |
| Referring clinicians | 1,689 |
| Medicare beneficiaries | 1,697 |
| States with claims | 48 |
| Share of services in top 3 states (California, Texas, Florida) | 29% |
| Year | Suppliers | Beneficiaries |
|---|---|---|
| 2022 | 323 | 2,441 |
| 2023 | 261 | 1,932 |
| 2024 | 233 | 1,697 |
Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.
Medicare utilization for A4364, 2022–2024
| Year | Services | Beneficiaries | Avg. allowed | Avg. paid |
|---|---|---|---|---|
| 2022 | 31,975 | 2,441 | $3.34 | $2.49 |
| 2023 | 26,907 | 1,932 | $3.62 | $2.70 |
| 2024 | 23,544 | 1,697 | $3.70 | $2.75 |
States with the most A4364 services (2024)
| State | Services | Avg. paid |
|---|---|---|
| California | 2,987 | $2.51 |
| Texas | 2,122 | $2.71 |
| Florida | 1,604 | $2.66 |
| New York | 1,282 | $2.86 |
| Georgia | 1,005 | $2.47 |
NCCI unit limits (MUE)
| Claim type | Max units per day | Rationale |
|---|---|---|
| outpatient hospital claims | 2 | Clinical: Data |
Medicare policy articles for this code
- A52463: Facial Prostheses - Policy Article (CGS Administrators, LLC (DME MAC) Noridian Healthcare Solutions, LLC (DME MAC)) — mentions this code in its coding guidance
What changed for A4364
- 2026-01-01: Average state fee rose 2.0%: $3.99 to $4.06
- 1985-01-01: A4364 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 A4364?
A4364 is the HCPCS Level II code for adhesive, liquid or equal, any type, per oz. Short descriptor: "Adhesive, liquid or equal".
How much does Medicare pay for A4364?
Under the 2026 DMEPOS fee schedule, non-rural state fees are base (base fee): $3.14–$9.38. Rural fees can be higher.
Does Medicare cover A4364?
Coverage code D — Special coverage instructions apply. Medicare covers it when its national or local coverage criteria are met.
Did the Medicare fee for A4364 change in 2026?
The average non-rural state fee moved from $3.99 in 2025 to $4.06 in 2026 (+2.0%). CMS's next quarterly HCPCS and DMEPOS update takes effect January 1, 2027.
How many units of A4364 can be billed per day?
2 on outpatient hospital claims (NCCI medically unlikely edits).
Related A43 codes
- A4300 — Implantable access catheter, (e.g., venous, arterial, epidural subarachnoid, or peritoneal, etc.) external access
- A4301 — Implantable access total catheter, port/reservoir (e.g., venous, arterial, epidural, subarachnoid, peritoneal, etc.)
- A4305 — Disposable drug delivery system, flow rate of 50 ml or greater per hour
- A4306 — Disposable drug delivery system, flow rate of less than 50 ml per hour
- A4310 — Insertion tray without drainage bag and without catheter (accessories only) ($9.36–$25.22)
- A4311 — Insertion tray without drainage bag with indwelling catheter, foley type, two-way latex with coating (teflon, silicone, silicone elastomer or hydrophilic, etc.) ($16.05–$28.00)
- A4312 — Insertion tray without drainage bag with indwelling catheter, foley type, two-way, all silicone ($21.85–$36.59)
- A4313 — Insertion tray without drainage bag with indwelling catheter, foley type, three-way, for continuous irrigation ($22.44–$40.49)
- A4314 — Insertion tray with drainage bag with indwelling catheter, foley type, two-way latex with coating (teflon, silicone, silicone elastomer or hydrophilic, etc.) ($30.63–$41.77)
- A4315 — Insertion tray with drainage bag with indwelling catheter, foley type, two-way, all silicone ($31.95–$48.37)
- A4316 — Insertion tray with drainage bag with indwelling catheter, foley type, three-way, for continuous irrigation ($34.40–$48.37)
- A4318 — Female external urinary collection cup, with or without ring attachment, per day
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 A4364
- Watch A4364 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for A4364
Sources: CMS HCPCS Level II release October 2026; 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.