A4378 HCPCS code: Ostomy pouch, drainable, for use on faceplate, rubber, each
A4378 is the HCPCS Level II code for ostomy pouch, drainable, for use on faceplate, rubber, each. The 2026 Medicare DMEPOS fee schedule pays $43.82 to $48.17 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. Its average fee ranks 61 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 | 2000-01-01 |
| Last action effective | 2003-01-01 |
2026 Medicare DMEPOS fee schedule for A4378
| Modifier | Meaning | Lowest state fee | Highest state fee | Ceiling | Floor |
|---|---|---|---|---|---|
| — | base fee | $43.82 | $48.17 | $43.82 | $37.25 |
| State | Modifier | Fee | Rural fee |
|---|---|---|---|
| AK | — | $44.24 | — |
| AL | — | $43.82 | — |
| AR | — | $43.82 | — |
| AZ | — | $43.82 | — |
| CA | — | $43.82 | — |
| CO | — | $43.82 | — |
| CT | — | $43.82 | — |
| DC | — | $43.82 | — |
| DE | — | $43.82 | — |
| FL | — | $43.82 | — |
| GA | — | $43.82 | — |
| HI | — | $47.31 | — |
| IA | — | $43.82 | — |
| ID | — | $43.82 | — |
| IL | — | $43.82 | — |
| IN | — | $43.82 | — |
| KS | — | $43.82 | — |
| KY | — | $43.82 | — |
| LA | — | $43.82 | — |
| MA | — | $43.82 | — |
| MD | — | $43.82 | — |
| ME | — | $43.82 | — |
| MI | — | $43.82 | — |
| MN | — | $43.82 | — |
| MO | — | $43.82 | — |
| MS | — | $43.82 | — |
| MT | — | $43.82 | — |
| NC | — | $43.82 | — |
| ND | — | $43.82 | — |
| NE | — | $43.82 | — |
| NH | — | $43.82 | — |
| NJ | — | $43.82 | — |
| NM | — | $43.82 | — |
| NV | — | $43.82 | — |
| NY | — | $43.82 | — |
| OH | — | $43.82 | — |
| OK | — | $43.82 | — |
| OR | — | $43.82 | — |
| PA | — | $43.82 | — |
| PR | — | $48.17 | — |
| RI | — | $43.82 | — |
| SC | — | $43.82 | — |
| SD | — | $43.82 | — |
| TN | — | $43.82 | — |
| TX | — | $43.82 | — |
| UT | — | $43.82 | — |
| VA | — | $43.82 | — |
| VI | — | $43.82 | — |
| VT | — | $43.82 | — |
| WA | — | $43.82 | — |
| WI | — | $43.82 | — |
| WV | — | $43.82 | — |
| WY | — | $43.82 | — |
How the A4378 fee compares
| Measure | Value |
|---|---|
| Rank among 68 A43 codes (lowest = 1) | 61 |
| Family fee range (average of state fees) | $0.05–$878.06 |
| Rural fee uplift | — |
NCCI unit limits (MUE)
| Claim type | Max units per day | Rationale |
|---|---|---|
| outpatient hospital claims | 2 | Clinical: CMS Workgroup |
| practitioner claims | 2 | Clinical: CMS Workgroup |
What changed for A4378
- 2026-01-01: Average state fee rose 2.0%: $43.11 to $43.98
- 2000-01-01: A4378 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 A4378?
A4378 is the HCPCS Level II code for ostomy pouch, drainable, for use on faceplate, rubber, each. Short descriptor: "Drainable rubber pch w/o fp".
How much does Medicare pay for A4378?
Under the 2026 DMEPOS fee schedule, non-rural state fees are base (base fee): $43.82–$48.17. Rural fees can be higher.
Does Medicare cover A4378?
Coverage code D — Special coverage instructions apply. Medicare covers it when its national or local coverage criteria are met.
Did the Medicare fee for A4378 change in 2026?
The average non-rural state fee moved from $43.11 in 2025 to $43.98 in 2026 (+2.0%). CMS's next quarterly HCPCS and DMEPOS update takes effect January 1, 2027.
How many units of A4378 can be billed per day?
2 on outpatient hospital claims; 2 on practitioner 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)
- A4320 — Irrigation tray with bulb or piston syringe, any purpose ($6.34–$8.42)
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Next steps
- Run a reimbursement report for a device billed under A4378
- Watch A4378 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for A4378
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.