A3 HCPCS Level II modifier: Dressing for three wounds
A3 is a HCPCS Level II modifier: “Dressing for three wounds.” It adds this detail to the code it is reported with.
Official description
A3Dressing for three wounds
HCPCS · United States
Medicare details
The indicators CMS publishes with A3 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Added
- Jul 1, 2002
Where A3 sits
- 1GroupHCPCS modifiers
- 2Modifier A3Dressing for three wounds
Source and release
- Data release
- HCPCS Level II · October 2026
- Effective date
- Oct 1, 2026
- Publisher
- CMS
This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does HCPCS code A3 mean?
A3 is the HCPCS code for “Dressing for three wounds” in CMS’s HCPCS Level II October 2026 release.
Where is A3 in the HCPCS Level II list?
A3 is listed under Modifiers.
Does Medicare cover A3?
CMS lists A3’s Medicare coverage as “Carrier judgment”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.
Which HCPCS Level II release does this page use?
It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.