$107.76–$114.71
This code represents a complete evaluation of the relevant central vessel or graft anatomy; 93979 is for a limited examination.
On this page
CMS RVU26D · Effective 2026-10-01
93978 Vascular duplex Medicare reimbursement rates in Maine
Reports a complete duplex evaluation of the aorta, vena cava, iliac vessels, or a related bypass graft for vascular disease assessment. Compare 93978 office and facility rates across CMS payment localities in Maine.
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 93978 in Maine?
Maine 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
$166.63–$177.29
2 of 2 localities have a supported rate.
Facility setting
No 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.
Vascular ultrasound
About 93978: Complete central vessel duplex
Reports a complete duplex evaluation of the aorta, vena cava, iliac vessels, or a related bypass graft for vascular disease assessment.
This service uses duplex ultrasound to assess blood flow and vessel structure in the aorta, inferior vena cava, iliac vessels, or a related bypass graft. Vascular sonographers commonly acquire the images in an outpatient vascular laboratory or hospital department; a qualified physician interprets the study. Clinical uses include assessment of suspected aortoiliac disease, surveillance of an aneurysm, evaluation of a graft, or investigation of suspected caval obstruction or thrombosis.
Select this code when the documented examination is complete for the relevant vessel or graft; use 93979 when the examination is limited. The report should identify the anatomy examined and include findings supporting the complete evaluation. The service may be billed globally, or split into interpretation with modifier 26 and equipment-and-staff services with modifier TC. When multiple cardiovascular diagnostic procedures are performed, the multiple procedure reduction applies to the technical component.
CMS billing rules for 93978
- Professional and technical components
- Diagnostic test with a professional component (modifier 26, interpretation) and a technical component (modifier TC, equipment and staff); billing without a modifier is the global service.
- Multiple procedures
- Cardiovascular diagnostic multiple procedure reduction applies to the technical component.
Where the value comes from
- Work RVU0.78 · 14%
- Practice expense (office) RVU4.48 · 83%
- Malpractice RVU0.14 · 3%
253.4K
Medicare services in 2024 · #342 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.
93978 compared with similar codes
Office rates for Maine, from the same CMS release.
$240.18–$255.63
93975 evaluates abdominal or pelvic visceral vascular flow. Choose this code when the study instead examines the aorta, vena cava, iliac vessels, or related graft.
93976
No office rateVascular study
93976 is the limited visceral vascular duplex option. It does not replace a complete central vessel or graft evaluation.
Compare 93978 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
Rest Of Maine →
Office / nonfacility
$166.63
Facility
Unavailable
Southern Maine →
Office / nonfacility
$177.29
Facility
Unavailable
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93978 billing questions
How does this differ from 93979?
93978 represents a complete evaluation of the relevant aortic, caval, iliac, or graft anatomy. Use 93979 for a limited examination.
Can the professional and technical services be billed separately?
Yes. Report modifier 26 for the professional interpretation or TC for the technical service; billing without either modifier represents the global service.
What documentation supports the complete-study code?
Document the clinical indication, the vessel or graft examined, and findings that support a complete evaluation of that anatomy.
What happens when another cardiovascular diagnostic test is performed?
The multiple procedure reduction applies to the technical component. It does not change the professional component under the CMS rule supplied for this code.
Is this the code for a visceral artery duplex?
No. This code addresses the aorta, inferior vena cava, iliac vessels, or a related bypass graft; 93975 and 93976 address a different abdominal or pelvic vascular study.
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.
12,33593976,,Vascular study,A,,0.78,3.82,,3.82,NA,0.07,4.67,4.67,1,XXX,0.00,0.00,0.00,6,0,0,0,0,9,,33.4009,09,0,99,3.46,3.46,0.07
12,33693976,26,Vascular study,A,,0.78,0.28,,0.28,,0.05,1.11,1.11,1,XXX,0.00,0.00,0.00,6,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
12,33793976,TC,Vascular study,A,,0.00,3.54,,3.54,NA,0.02,3.56,3.56,1,XXX,0.00,0.00,0.00,6,0,0,0,0,9,,33.4009,01,0,99,3.18,3.18,0.02
12,33893978,,Vascular study,A,,0.78,4.48,,4.48,NA,0.14,5.40,5.40,1,XXX,0.00,0.00,0.00,6,0,0,0,0,9,,33.4009,09,0,99,7.48,7.48,0.16
12,33993978,26,Vascular study,A,,0.78,0.23,,0.23,,0.11,1.12,1.12,1,XXX,0.00,0.00,0.00,6,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
12,34093978,TC,Vascular study,A,,0.00,4.25,,4.25,NA,0.03,4.28,4.28,1,XXX,0.00,0.00,0.00,6,0,0,0,0,9,,33.4009,01,0,99,7.25,7.25,0.05
12,34193979,,Vascular study,A,,0.49,2.92,,2.92,NA,0.08,3.49,3.49,1,XXX,0.00,0.00,0.00,6,0,0,0,0,9,,33.4009,09,0,99,3.31,3.31,0.08