| Modifier | Description |
|---|---|
| V1 | Demonstration modifier 1 |
| V2 | Demonstration modifier 2 |
| V3 | Demonstration modifier 3 |
| V4 | Demonstration modifier 4 |
| V5 | Vascular catheter (alone or with any other vascular access) |
| V6 | Arteriovenous graft (or other vascular access not including a vascular catheter) |
| V7 | Arteriovenous fistula only (in use with two needles) |
| V8 | Infection present Terminated March 31, 2012. |
| V9 | No infection present Terminated March 31, 2012. |
| VM | Medicare diabetes prevention program (mdpp) virtual make-up session |
| VP | Aphakic patient |