A6231 HCPCS code: Gauze, impregnated, hydrogel, for direct wound contact, sterile, pad size 16 sq. in. or less, each dressing

A6231 is the HCPCS Level II code for gauze, impregnated, hydrogel, for direct wound contact, sterile, pad size 16 sq. in. or less, each dressing. The 2026 Medicare DMEPOS fee schedule pays $6.66 to $7.95 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. Medicare volume fell 57% from 2022 to 2024 (224,006 to 96,279 services). In 2024, 72 suppliers billed Medicare for A6231 (purchases), serving 2,806 beneficiaries; New York, Pennsylvania, California accounted for 51% of services. Its average fee ranks 17 of 41 A62 codes (family range $0.05–$56.30).

Code details

2026 Medicare DMEPOS fee schedule for A6231

How the A6231 fee compares

Who bills A6231 (2024)

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

Medicare utilization for A6231, 2022–2024

States with the most A6231 services (2024)

Medicare policy articles for this code

• A54563: Surgical Dressings - Policy Article (CGS Administrators, LLC (DME MAC) Noridian Healthcare Solutions, LLC (DME MAC)) — mentions this code in its coding guidance

What changed for A6231

• 2026-01-01: Average state fee rose 2.0%: $6.57 to $6.70
• 2001-01-01: A6231 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 A6231?

A6231 is the HCPCS Level II code for gauze, impregnated, hydrogel, for direct wound contact, sterile, pad size 16 sq. in. or less, each dressing. Short descriptor: "Hydrogel dsg<=16 sq in".

How much does Medicare pay for A6231?

Under the 2026 DMEPOS fee schedule, non-rural state fees are base (base fee): $6.66–$7.95. Rural fees can be higher.

Does Medicare cover A6231?

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

Did the Medicare fee for A6231 change in 2026?

The average non-rural state fee moved from $6.57 in 2025 to $6.70 in 2026 (+2.0%). CMS's next quarterly HCPCS and DMEPOS update takes effect January 1, 2027.

Related A62 codes

• A6203 — Composite dressing, sterile, pad size 16 sq. in. or less, with any size adhesive border, each dressing ($4.80–$5.70)
• A6204 — Composite dressing, sterile, pad size more than 16 sq. in. but less than or equal to 48 sq. in., with any size adhesive border, each dressing ($8.86–$10.62)
• A6205 — Composite dressing, sterile, pad size more than 48 sq. in., with any size adhesive border, each dressing
• A6206 — Contact layer, sterile, 16 sq. in. or less, each dressing
• A6207 — Contact layer, sterile, more than 16 sq. in. but less than or equal to 48 sq. in., each dressing ($10.47–$12.56)
• A6208 — Contact layer, sterile, more than 48 sq. in., each dressing
• A6209 — Foam dressing, wound cover, sterile, pad size 16 sq. in. or less, without adhesive border, each dressing ($10.65–$12.82)
• A6210 — Foam dressing, wound cover, sterile, pad size more than 16 sq. in. but less than or equal to 48 sq. in., without adhesive border, each dressing ($28.40–$34.06)
• A6211 — Foam dressing, wound cover, sterile, pad size more than 48 sq. in., without adhesive border, each dressing ($41.86–$50.18)
• A6212 — Foam dressing, wound cover, sterile, pad size 16 sq. in. or less, with any size adhesive border, each dressing ($13.84–$16.61)
• A6213 — Foam dressing, wound cover, sterile, pad size more than 16 sq. in. but less than or equal to 48 sq. in., with any size adhesive border, each dressing
• A6214 — Foam dressing, wound cover, sterile, pad size more than 48 sq. in., with any size adhesive border, each dressing ($14.68–$17.62)

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Next steps

• Run a reimbursement report for a device billed under A6231
• Watch A6231 for fee, coverage and descriptor changes
• Build a full Medicare revenue model for A6231

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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