A4377 HCPCS code: Ostomy pouch, drainable, for use on faceplate, plastic, each

A4377 is the HCPCS Level II code for ostomy pouch, drainable, for use on faceplate, plastic, each. The 2026 Medicare DMEPOS fee schedule pays $6.11 to $6.72 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 13% from 2022 to 2024 (7,373 to 6,395 services). In 2024, 36 suppliers billed Medicare for A4377 (purchases), serving 117 beneficiaries; Texas, Ohio, California accounted for 35% of services. Its average fee ranks 20 of 68 A43 codes (family range $0.05–$878.06).

Code details

2026 Medicare DMEPOS fee schedule for A4377

How the A4377 fee compares

Who bills A4377 (2024)

Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.

Medicare utilization for A4377, 2022–2024

States with the most A4377 services (2024)

NCCI unit limits (MUE)

Medicare policy articles for this code

• A52487: Ostomy Supplies - Policy Article (CGS Administrators, LLC (DME MAC) Noridian Healthcare Solutions, LLC (DME MAC)) — mentions this code in its coding guidance

Covered diagnoses (10 ICD-10-CM codes)

The diagnoses most often listed as covered in the policy articles above:

What changed for A4377

• 2026-01-01: Average state fee rose 2.0%: $6.01 to $6.13
• 2000-01-01: A4377 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 A4377?

A4377 is the HCPCS Level II code for ostomy pouch, drainable, for use on faceplate, plastic, each. Short descriptor: "Drainable plstic pch w/o fp".

How much does Medicare pay for A4377?

Under the 2026 DMEPOS fee schedule, non-rural state fees are base (base fee): $6.11–$6.72. Rural fees can be higher.

Does Medicare cover A4377?

Coverage code D — Special coverage instructions apply. Medicare covers it when its national or local coverage criteria are met.

Which diagnoses support coverage for A4377?

Medicare policy articles that cite A4377 list 10 covered ICD-10-CM diagnosis codes across 1 article. The most cited include K94.00 (Colostomy complication, unspecified), K94.03 (Colostomy malfunction), K94.10 (Enterostomy complication, unspecified). A listed diagnosis is necessary but not sufficient; the policy's other criteria still apply.

Did the Medicare fee for A4377 change in 2026?

The average non-rural state fee moved from $6.01 in 2025 to $6.13 in 2026 (+2.0%). CMS's next quarterly HCPCS and DMEPOS update takes effect January 1, 2027.

How many units of A4377 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)
• A4318 — Female external urinary collection cup, with or without ring attachment, per day

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Next steps

• Run a reimbursement report for a device billed under A4377
• Watch A4377 for fee, coverage and descriptor changes
• Build a full Medicare revenue model for A4377

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.

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