V1 HCPCS Level II modifier: Demonstration modifier 1
V1 is a HCPCS Level II modifier: “Demonstration modifier 1.” It adds this detail to the code it is reported with.
Official description
V1Demonstration modifier 1
HCPCS · United States
Medicare details
The indicators CMS publishes with V1 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Added
- Jan 1, 2017
Where V1 sits
- 1GroupHCPCS modifiers
- 2Modifier V1Demonstration modifier 1
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 V1 mean?
V1 is the HCPCS code for “Demonstration modifier 1” in CMS’s HCPCS Level II October 2026 release.
Where is V1 in the HCPCS Level II list?
V1 is listed under Modifiers.
Does Medicare cover V1?
CMS lists V1’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.
Codes beside V1
All modifiersUKServices provided on behalf of the client to someone other than the client (collateral relationship)UNTwo patients servedUPThree patients servedUQFour patients servedURFive patients servedUSSix or more patients servedV2Demonstration modifier 2V3Demonstration modifier 3V4Demonstration modifier 4V5Vascular catheter (alone or with any other vascular access)V6Arteriovenous graft (or other vascular access not including a vascular catheter)V7Arteriovenous fistula only (in use with two needles)