Billing code 61651: Drug infusionMedicare rate & RVUs in Florida
Report 61651 for prolonged intra-arterial administration of a therapeutic agent in each additional intracranial vessel treated during neuroendovascular therapy.
CMS doesn’t publish an office rate for 61651 in Florida.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 9 sections
What 61651 covers
This add-on describes prolonged delivery of a pharmacologic agent into an additional intracranial vessel, such as intra-arterial vasodilator treatment for cerebral vasospasm after aneurysmal subarachnoid hemorrhage. A neurointerventional radiologist, endovascular neurosurgeon, or other qualified specialist typically performs the treatment in an angiography suite. The service may also involve prolonged intra-arterial drug delivery for another intracranial vascular indication, such as thrombolytic therapy.
Report 61651 for each additional treated vessel after the initial vessel reported with 61650; it represents another vessel, not extra minutes or another drug dose in the same vessel. The primary service includes catheter placement, diagnostic angiography, and imaging guidance, so those elements are not separately represented by this add-on. Documentation should identify the additional vessel treated and the prolonged pharmacologic administration performed. As an add-on code, 61651 is reported with its primary procedure, and payment falls within that procedure’s global period.
This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.
Where 61651 pays more and less in Florida
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
| Payment locality | Office | Facility |
|---|---|---|
| Fort Lauderdale | Unavailable | $261.28 |
| Miami | Unavailable | $295.38 |
| Rest Of Florida | Unavailable | $245.05 |
How the 61651 rate is calculated
Each of 61651’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.
How the rate is built · 61651
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 4.14Practice expense 1.19Malpractice 1.37
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 61651
The CMS indicators that decide how 61651 is paid alongside other services.
CMS payment indicators · 61651
Drug infusion
| Rule | CMS value | What it means |
|---|---|---|
| Global period | ZZZ | Add-on code: falls within the primary procedure’s global period. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 1 | Not paid (statutory restriction). |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
61651 compared with similar codes
Compare codes
61651 vs 61650 vs 61641 vs 61642: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 61650Endovascular drug infusion
- 61650 covers the initial vessel treated with prolonged pharmacologic administration; 61651 is added for each additional vessel treated.
- 61641Dilat ic vspsm ea vsl sm ter
- 61641 describes an additional vessel treated with balloon angioplasty for vasospasm in the same vascular territory. 61651 describes prolonged pharmacologic administration in another vessel.
- 61642Dilat ic vspsm ea diff ter
- 61642 describes balloon angioplasty for vasospasm in an additional vessel in a different vascular territory; 61651 is for prolonged pharmacologic administration.
61651 billing questions
When is 61651 reported with 61650?
Use 61650 for the initial vessel treated with prolonged pharmacologic administration and 61651 for each additional vessel treated. The add-on must be reported with the primary procedure.
Is 61651 based on additional treatment time?
No. It represents treatment in an additional vessel, not additional minutes or another dose in the same vessel.
Can catheter placement or angiography be billed separately with 61651?
Those elements are included in the endovascular therapy service. The add-on identifies treatment of another vessel, rather than separate catheter placement or imaging guidance.
What documentation supports an additional-vessel unit?
Document the additional intracranial vessel treated and the prolonged intra-arterial pharmacologic administration performed there. The record should distinguish it from the initial vessel.
How does 61651 differ from 61641 or 61642?
61651 is for an additional vessel treated with prolonged pharmacologic administration. Codes 61641 and 61642 describe additional vessels treated with balloon angioplasty for intracranial vasospasm.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.
CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027
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