$1,995.51–$2,241.12
36223 is based on selective placement in the common carotid or innominate artery; 36224 requires selective internal carotid placement and imaging of the ipsilateral extracranial and intracranial circulation.
On this page
CMS RVU26D · Effective 2026-10-01
36224 Carotid angiography Medicare reimbursement rates in Massachusetts
Reports selective catheter angiography of one internal carotid artery when images document both the ipsilateral extracranial and intracranial circulation. Compare 36224 office and facility rates across CMS payment localities in Massachusetts.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
What does Medicare pay for 36224 in Massachusetts?
Massachusetts has 2 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 2 payment areas shown below, using the same CMS release.
Office / nonfacility
$2450.71–$2755.38
2 of 2 localities have a supported rate.
Facility setting
$325.32–$345.39
2 of 2 localities have a supported rate.
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Diagnostic angiography
About 36224: Selective internal carotid angiography
Reports selective catheter angiography of one internal carotid artery when images document both the ipsilateral extracranial and intracranial circulation.
A physician advances a catheter selectively into an internal carotid artery and injects contrast to image that side’s extracranial and intracranial carotid circulation. Arch and cervical carotid imaging may be included when performed. Neurointerventional and diagnostic radiologists commonly perform the study in a hospital angiography suite; the service represents diagnostic imaging, not catheter placement alone.
Report the code when the record supports selective internal carotid catheterization, imaging of both circulation regions, and an interpretation of the findings. The 0-day global period includes same-day preoperative and postoperative care. When multiple procedures occur in one session, the highest-valued procedure is paid in full and the others at 50%. Bilateral reporting with modifier 50 is paid at 150%. CMS does not pay an assistant at surgery; co-surgeons and team surgery are not permitted.
CMS billing rules for 36224
- Global period
- Minor procedure with a 0-day global period: same-day preoperative and postoperative care is included.
- Multiple procedures
- Standard multiple procedure reduction: the highest-valued procedure is paid in full and others at 50% when performed in the same session.
- Bilateral procedures
- Bilateral procedure with modifier 50 is paid at 150%.
- Assistant at surgery
- Statutory restriction: assistant at surgery is not paid.
- Co-surgeons
- Co-surgeons not permitted.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU6.09 · 9%
- Practice expense (office) RVU62.32 · 89%
- Malpractice RVU1.96 · 3%
24.1K
Medicare services in 2024 · #1064 by national volume
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.
36224 compared with similar codes
Office rates for Massachusetts, from the same CMS release.
$1,308.74–$1,464.28
36222 describes selective common carotid or innominate placement with extracranial carotid imaging. Choose 36224 when the catheter is selectively placed in the internal carotid and both circulation regions are imaged.
$2,383.17–$2,678.82
36226 covers selective vertebral artery angiography. 36224 applies to the internal carotid artery and its ipsilateral extracranial and intracranial circulation.
$1,605.45–$1,804.42
36228 is for selective catheterization and angiography of an additional intracranial branch; 36224 covers the internal carotid circulation study.
Compare 36224 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
2 of 2 payment localities
Metropolitan Boston →
Office / nonfacility
$2755.38
Facility
$345.39
Rest Of Massachusetts →
Office / nonfacility
$2450.71
Facility
$325.32
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36224 billing questions
Does catheter placement alone support 36224?
No. The study includes angiography of the ipsilateral extracranial and intracranial carotid circulation; catheter placement without that imaging does not describe the service.
When should 36223 be considered instead?
Use 36223 when the selective catheter position is in the common carotid or innominate artery and the documented imaging meets that code’s criteria. 36224 is for selective placement in the internal carotid artery.
What documentation supports reporting 36224?
Document the side, selective internal carotid catheter position, imaging of both the ipsilateral extracranial and intracranial circulation, and the angiographic interpretation.
How is bilateral internal carotid angiography paid?
CMS identifies this as a bilateral procedure; reporting modifier 50 is paid at 150%.
Are same-day services included in the global period?
Yes. The 0-day global period includes same-day preoperative and postoperative care.
Can an assistant or co-surgeon be reported?
CMS does not pay an assistant at surgery for this procedure. Co-surgeons and team surgery are not permitted.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
4,44736221,,Place cath thoracic aorta,A,,3.82,23.81,,0.61,,0.90,28.53,5.33,0,000,0.00,0.00,0.00,2,2,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,44836222,,Place cath carotid/inom art,A,,5.15,31.25,,1.10,,1.31,37.71,7.56,0,000,0.00,0.00,0.00,2,1,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,44936223,,Place cath carotid/inom art,A,,5.61,50.03,,1.58,,1.71,57.35,8.90,0,000,0.00,0.00,0.00,2,1,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,45036224,,Place cath carotd art,A,,6.09,62.32,,1.89,,1.96,70.37,9.94,0,000,0.00,0.00,0.00,2,1,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,45136225,,Place cath subclavian art,A,,5.61,46.36,,1.51,,1.69,53.66,8.81,0,000,0.00,0.00,0.00,2,1,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,45236226,,Place cath vertebral art,A,,6.09,60.43,,1.85,,1.92,68.44,9.86,0,000,0.00,0.00,0.00,2,1,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,45336227,,Place cath xtrnl carotid,A,,2.04,5.50,,0.55,,0.65,8.19,3.24,0,ZZZ,0.00,0.00,0.00,0,1,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00