CPT code 93970: Venous duplex scan, complete bilateral extremity study2026 Medicare rate & RVUs in Washington, DC area
Complete bilateral extremity venous duplex evaluates both arms or both legs for suspected thrombosis or venous insufficiency using imaging, compression, and flow assessment.
In Washington, DC area, Medicare pays $213.79 for 93970 in the office.
Check a contract rate as a % of Medicare · 93970 nationwide
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 11 sections
What 93970 covers
A vascular technologist or sonographer uses grayscale imaging and Doppler to assess veins in both arms or both legs, including responses to compression and flow maneuvers. The examination may investigate leg swelling or suspected deep vein thrombosis; reflux testing may help evaluate chronic venous insufficiency before vein treatment. The record should identify the venous segments examined and findings on each side. The study is commonly performed in vascular laboratories, radiology departments, hospitals, or vein clinics and interpreted by a radiologist, vascular surgeon, or other qualified physician.
Report one unit for a complete bilateral study of an extremity pair, supported by images and an interpretation addressing both sides. Use 93971 for a single extremity or a limited examination. Modifier 26 identifies the interpretation alone, and modifier TC identifies the equipment and staff portion; billing without either modifier represents the global service. The code is already priced for both sides, so modifier 50 does not increase payment. When multiple eligible cardiovascular diagnostic tests are billed together, CMS applies its multiple procedure reduction to the technical component.
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.
How Washington, DC area compares for 93970
Across 109 of 109 payment localities, the office rate for 93970 runs from $160.26 in Arkansas to $255.12 in San Benito County, CA. Washington, DC area pays $213.79. The RVUs are the same everywhere; the geographic indexes change the dollars.
- Washington, DC area · this page$213.79
- Los Angeles, CA · California$212.93−$0.86
- Miami, FL · Florida$195.13−$18.66
- Chicago, IL · Illinois$188.88−$24.91
- Manhattan, NY · New York$212.90−$0.89
- Alaska · Alaska$204.34−$9.45
- Alabama · Alabama$162.94−$50.85
Other areas in District of Columbia first, then benchmark localities. Bars start at $0.
Every other payment area
| Payment locality | Office | Facility |
|---|---|---|
| ArkansasArkansas | $160.26 | — |
| ArizonaArizona | $178.70 | — |
| Bakersfield, CACalifornia | $198.49 | — |
| Chico, CACalifornia | $198.23 | — |
| El Centro, CACalifornia | $198.24 | — |
| Fresno, CACalifornia | $198.23 | — |
| Hanford, CACalifornia | $198.23 | — |
| Madera, CACalifornia | $198.23 | — |
| Merced, CACalifornia | $198.23 | — |
| Modesto, CACalifornia | $198.23 | — |
| Napa, CACalifornia | $234.34 | — |
| Oxnard, CACalifornia | $212.36 | — |
| Redding, CACalifornia | $198.23 | — |
| Rest of CaliforniaCalifornia | $198.23 | — |
| Riverside, CACalifornia | $199.20 | — |
| Sacramento, CACalifornia | $209.27 | — |
| Salinas, CACalifornia | $208.52 | — |
| San Diego, CACalifornia | $214.37 | — |
| Marin County, CACalifornia | $249.48 | — |
| San Francisco, CACalifornia | $249.38 | — |
| San Benito County, CACalifornia | $255.12 | — |
| Santa Clara County, CACalifornia | $254.70 | — |
| San Luis Obispo, CACalifornia | $205.04 | — |
| Santa Cruz, CACalifornia | $217.16 | — |
| Santa Maria, CACalifornia | $209.56 | — |
| Santa Rosa, CACalifornia | $219.42 | — |
| Stockton, CACalifornia | $198.23 | — |
| Vallejo, CACalifornia | $234.19 | — |
| Visalia, CACalifornia | $198.23 | — |
| Yuba City, CACalifornia | $198.23 | — |
| ColoradoColorado | $193.79 | — |
| ConnecticutConnecticut | $197.32 | — |
| DelawareDelaware | $181.95 | — |
| Fort Lauderdale, FLFlorida | $188.53 | — |
| Rest of FloridaFlorida | $178.58 | — |
| Atlanta, GAGeorgia | $187.24 | — |
| Rest of GeorgiaGeorgia | $167.52 | — |
| Hawaii, Guam, HIHawaii | $204.46 | — |
| IowaIowa | $168.77 | — |
| IdahoIdaho | $169.79 | — |
| East St. Louis, ILIllinois | $174.42 | — |
| Rest of IllinoisIllinois | $171.96 | — |
| Suburban Chicago, ILIllinois | $190.79 | — |
| IndianaIndiana | $170.94 | — |
| KansasKansas | $167.35 | — |
| KentuckyKentucky | $166.21 | — |
| New Orleans, LALouisiana | $175.11 | — |
| Rest of LouisianaLouisiana | $165.71 | — |
| Metropolitan Boston, MAMassachusetts | $215.35 | — |
| Rest of MassachusettsMassachusetts | $192.18 | — |
| Baltimore area, MDMaryland | $196.67 | — |
| Rest of MarylandMaryland | $185.92 | — |
| Rest of MaineMaine | $170.24 | — |
| Southern Maine, MEMaine | $181.50 | — |
| Detroit, MIMichigan | $180.56 | — |
| Rest of MichiganMichigan | $170.65 | — |
| MinnesotaMinnesota | $186.51 | — |
| Metropolitan Kansas City, MOMissouri | $174.31 | — |
| Metropolitan St. Louis, MOMissouri | $176.45 | — |
| Rest of MissouriMissouri | $162.11 | — |
| MississippiMississippi | $161.25 | — |
| MontanaMontana | $184.03 | — |
| North CarolinaNorth Carolina | $172.35 | — |
| North DakotaNorth Dakota | $182.25 | — |
| NebraskaNebraska | $169.98 | — |
| New HampshireNew Hampshire | $190.15 | — |
| Northern New JerseyNew Jersey | $211.01 | — |
| Rest of New JerseyNew Jersey | $199.80 | — |
| New MexicoNew Mexico | $171.50 | — |
| NevadaNevada | $183.70 | — |
| NYC suburbs and Long Island, NYNew York | $217.99 | — |
| Poughkeepsie and northern NYC suburbs, NYNew York | $200.73 | — |
| Queens, NYNew York | $215.64 | — |
| Rest of New YorkNew York | $175.23 | — |
| OhioOhio | $170.29 | — |
| OklahomaOklahoma | $166.43 | — |
| Portland, OROregon | $201.21 | — |
| Rest of OregonOregon | $182.51 | — |
| Metropolitan Philadelphia, PAPennsylvania | $191.52 | — |
| Rest of PennsylvaniaPennsylvania | $170.89 | — |
| Puerto RicoPuerto Rico | $185.74 | — |
| Rhode IslandRhode Island | $189.37 | — |
| South CarolinaSouth Carolina | $171.56 | — |
| South DakotaSouth Dakota | $182.04 | — |
| TennesseeTennessee | $168.24 | — |
| Austin, TXTexas | $192.92 | — |
| Beaumont, TXTexas | $169.58 | — |
| Brazoria, TXTexas | $182.13 | — |
| Dallas, TXTexas | $183.18 | — |
| Fort Worth, TXTexas | $181.64 | — |
| Galveston, TXTexas | $182.60 | — |
| Houston, TXTexas | $184.24 | — |
| Rest of TexasTexas | $175.67 | — |
| UtahUtah | $174.23 | — |
| VirginiaVirginia | $180.46 | — |
| Virgin Islands, VIUnited States Virgin Islands | $185.74 | — |
| VermontVermont | $180.97 | — |
| Rest of WashingtonWashington | $192.01 | — |
| King County, WAWashington | $220.56 | — |
| WisconsinWisconsin | $175.31 | — |
| West VirginiaWest Virginia | $164.59 | — |
| WyomingWyoming | $183.26 | — |
93970 rates by state
Office rate range in each state. Select a state to see its payment localities.
Explore a state
Local rates. Clear comparisons.
Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.
$160.26
$226.68
Color shows the midpoint of each state’s locality range.
View every state and territory as a table
| State / territory | Office rate range | Localities |
|---|---|---|
| AK | $204.34 | 1 |
| AL | $162.94 | 1 |
| AR | $160.26 | 1 |
| AZ | $178.70 | 1 |
| CA | $198.23–$255.12 | 29 |
| CO | $193.79 | 1 |
| CT | $197.32 | 1 |
| DC | $213.79 | 1 |
| DE | $181.95 | 1 |
| FL | $178.58–$195.13 | 3 |
| GA | $167.52–$187.24 | 2 |
| GU | $204.46 | 1 |
| HI | $204.46 | 1 |
| IA | $168.77 | 1 |
| ID | $169.79 | 1 |
| IL | $171.96–$190.79 | 4 |
| IN | $170.94 | 1 |
| KS | $167.35 | 1 |
| KY | $166.21 | 1 |
| LA | $165.71–$175.11 | 2 |
| MA | $192.18–$215.35 | 2 |
| MD | $185.92–$213.79 | 3 |
| ME | $170.24–$181.50 | 2 |
| MI | $170.65–$180.56 | 2 |
| MN | $186.51 | 1 |
| MO | $162.11–$176.45 | 3 |
| MS | $161.25 | 1 |
| MT | $184.03 | 1 |
| NC | $172.35 | 1 |
| ND | $182.25 | 1 |
| NE | $169.98 | 1 |
| NH | $190.15 | 1 |
| NJ | $199.80–$211.01 | 2 |
| NM | $171.50 | 1 |
| NV | $183.70 | 1 |
| NY | $175.23–$217.99 | 5 |
| OH | $170.29 | 1 |
| OK | $166.43 | 1 |
| OR | $182.51–$201.21 | 2 |
| PA | $170.89–$191.52 | 2 |
| PR | $185.74 | 1 |
| RI | $189.37 | 1 |
| SC | $171.56 | 1 |
| SD | $182.04 | 1 |
| TN | $168.24 | 1 |
| TX | $169.58–$192.92 | 8 |
| UT | $174.23 | 1 |
| VA | $180.46–$213.79 | 2 |
| VI | $185.74 | 1 |
| VT | $180.97 | 1 |
| WA | $192.01–$220.56 | 2 |
| WI | $175.31 | 1 |
| WV | $164.59 | 1 |
| WY | $183.26 | 1 |
How the 93970 rate is calculated
Each of 93970’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 · 93970
RVUs × geographic indexes × conversion factor
Work0.68
0.68 RVUs× 1.000 GPCI
Practice expense4.74
4.74 RVUs× 1.000 GPCI
Malpractice0.09
0.09 RVUs× 1.000 GPCI
Adjusted RVUs
5.5100
Conversion factor
$33.4009
Medicare rate
$184.04
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
The exact Washington, DC area inputs and CMS source lines
PPRRVU2026_Oct_nonQPP.csv
12,326
- Code
- 93970
- Physician work
- 0.68
- Practice expense
- 4.74
- Malpractice
- 0.09
GPCI2026.csv
39
- Locality
- Washington, DC area
- Physician work
- 1.054
- Practice expense
- 1.178
- Malpractice
- 1.113
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 0.68 | × 1.054 | 0.7167 |
| Practice expense | 4.74 | × 1.178 | 5.5837 |
| Malpractice | 0.09 | × 1.113 | 0.1002 |
| Total RVUs | 6.4006 | ||
| Conversion factor | × 33.4009 | ||
Office rate, Washington, DC area$213.79
Office: (0.68 × 1.054 + 4.74 × 1.178 + 0.09 × 1.113) × $33.4009 = $213.79
Payment rules and modifiers for 93970
The CMS indicators that decide how 93970 is paid alongside other services.
CMS payment indicators · 93970
Venous duplex scan, complete bilateral extremity study
| Rule | CMS value | What it means |
|---|---|---|
| Global period | XXX | The global surgery concept doesn’t apply. |
| Multiple procedures | 6 | Diagnostic cardiovascular reduction applies to the technical component. |
| Bilateral (modifier 50) | 2 | Already bilateral by definition: paid once at 100%. |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 1 | Diagnostic test with separate professional (26) and technical (TC) components. |
What modifiers do to the payment
Modifier 26 · payment effect
With and without the modifier
93970 without 26 · national office
$184.04
Venous duplex scan, complete bilateral extremity study
93970-26 · Professional component
$32.06
Pays only the interpretation and report.
How 93970 has changed in Washington, DC area
93970 · Office / nonfacility
$213.79
Effective 2026-10-01
The base rate is $3.69 higher than on 2025-10-01, moving from $210.10 to $213.79 (1.8%).
It is unchanged from the immediately preceding available release, effective 2026-07-01.
One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.
What changed, release by release
January 1, 2026
RVU26A
$210.10changed to$213.79
- Conversion factor 32.3465 changed to 33.4009
- Work RVU 0.70 changed to 0.68
- Practice expense RVU 4.75 changed to 4.74
- Malpractice RVU 0.08 changed to 0.09
- Work GPCI 1.057 changed to 1.054
- Practice expense GPCI 1.192 changed to 1.178
- Malpractice GPCI 1.168 changed to 1.113
Held through RVU26B, RVU26C, RVU26D.
January 1, 2025
RVU25A
$219.38changed to$210.10
- Conversion factor 33.2875 changed to 32.3465
- Practice expense RVU 4.82 changed to 4.75
- Malpractice RVU 0.09 changed to 0.08
Held through RVU25B, RVU25C, RVU25D.
March 9, 2024
RVU24AR
$215.80changed to$219.38
- Conversion factor 32.7442 changed to 33.2875
Held through RVU24B, RVU24C, RVU24D.
January 1, 2024
RVU24A
$228.75changed to$215.80
- Conversion factor 33.8872 changed to 32.7442
- Practice expense RVU 4.85 changed to 4.82
- Malpractice RVU 0.10 changed to 0.09
- Work GPCI 1.056 changed to 1.057
- Practice expense GPCI 1.214 changed to 1.192
- Malpractice GPCI 1.231 changed to 1.168
January 1, 2023
RVU23A
$237.87changed to$228.75
- Conversion factor 34.6062 changed to 33.8872
- Practice expense RVU 4.87 changed to 4.85
- Malpractice RVU 0.09 changed to 0.10
- Work GPCI 1.054 changed to 1.056
- Practice expense GPCI 1.236 changed to 1.214
- Malpractice GPCI 1.294 changed to 1.231
Held through RVU23B, RVU23C, RVU23D.
January 1, 2022
RVU22A
$243.25changed to$237.87
- Conversion factor 34.8931 changed to 34.6062
- Practice expense RVU 4.97 changed to 4.87
- Malpractice RVU 0.07 changed to 0.09
Held through RVU22B, RVU22C, RVU22D.
January 1, 2021
RVU21A
$238.62changed to$243.25
- Conversion factor 36.0896 changed to 34.8931
- Practice expense RVU 4.73 changed to 4.97
- Malpractice RVU 0.08 changed to 0.07
- Work GPCI 1.049 changed to 1.054
- Practice expense GPCI 1.221 changed to 1.236
- Malpractice GPCI 1.277 changed to 1.294
Held through RVU21B, RVU21C, RVU21D.
January 1, 2020
RVU20A
$235.84changed to$238.62
- Conversion factor 36.0391 changed to 36.0896
- Practice expense RVU 4.74 changed to 4.73
- Work GPCI 1.045 changed to 1.049
- Practice expense GPCI 1.205 changed to 1.221
- Malpractice GPCI 1.261 changed to 1.277
Held through RVU20B, RVU20C, RVU20D.
January 1, 2019
RVU19A
$239.49changed to$235.84
- Conversion factor 35.9996 changed to 36.0391
- Practice expense RVU 4.83 changed to 4.74
Held through RVU19B, RVU19C, RVU19D.
January 1, 2018
RVU18AR1
$237.56changed to$239.49
- Conversion factor 35.8887 changed to 35.9996
- Practice expense RVU 4.80 changed to 4.83
- Work GPCI 1.048 changed to 1.045
- Malpractice GPCI 1.271 changed to 1.261
Held through RVU18B, RVU18C, RVU18D.
January 1, 2017
RVU17A
No ratechanged to$237.56
Held through RVU17B, RVU17C, RVU17D.
January 1, 2016
RVU16A
$237.96changed toNo rate
Held through RVU16B, RVU16C, RVU16D.
July 1, 2015
RVU15C
$236.77changed to$237.96
- Conversion factor 35.7547 changed to 35.9335
Held through RVU15D.
January 1, 2015
RVU15A
$223.12changed to$236.77
- Conversion factor 35.8228 changed to 35.7547
- Practice expense RVU 4.49 changed to 4.80
- Work GPCI 1.050 changed to 1.051
- Practice expense GPCI 1.202 changed to 1.205
- Malpractice GPCI 1.205 changed to 1.280
Held through RVU15B.
January 1, 2014
RVU14A
No ratechanged to$223.12
Held through RVU14B, RVU14C, RVU14D.
January 1, 2013
RVU13AR
Earliest loaded release: No rate
Held through RVU13B, RVU13C, RVU13D.
| Effective from | Office | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | $213.79 | Not available in this setting | RVU26D |
| 2026-07-01 | $213.79 | Not available in this setting | RVU26C |
| 2026-04-01 | $213.79 | Not available in this setting | RVU26B |
| 2026-01-01 | $213.79 | Not available in this setting | RVU26A |
| 2025-10-01 | $210.10 | Not available in this setting | RVU25D |
| 2025-07-01 | $210.10 | Not available in this setting | RVU25C |
| 2025-04-01 | $210.10 | Not available in this setting | RVU25B |
| 2025-01-01 | $210.10 | Not available in this setting | RVU25A |
| 2024-10-01 | $219.38 | Not available in this setting | RVU24D |
| 2024-07-01 | $219.38 | Not available in this setting | RVU24C |
| 2024-04-01 | $219.38 | Not available in this setting | RVU24B |
| 2024-03-09 | $219.38 | Not available in this setting | RVU24AR |
| 2024-01-01 | $215.80 | Not available in this setting | RVU24A |
| 2023-10-01 | $228.75 | Not available in this setting | RVU23D |
| 2023-07-01 | $228.75 | Not available in this setting | RVU23C |
| 2023-04-01 | $228.75 | Not available in this setting | RVU23B |
| 2023-01-01 | $228.75 | Not available in this setting | RVU23A |
| 2022-10-01 | $237.87 | Not available in this setting | RVU22D |
| 2022-07-01 | $237.87 | Not available in this setting | RVU22C |
| 2022-04-01 | $237.87 | Not available in this setting | RVU22B |
| 2022-01-01 | $237.87 | Not available in this setting | RVU22A |
| 2021-10-01 | $243.25 | Not available in this setting | RVU21D |
| 2021-07-01 | $243.25 | Not available in this setting | RVU21C |
| 2021-04-01 | $243.25 | Not available in this setting | RVU21B |
| 2021-01-01 | $243.25 | Not available in this setting | RVU21A |
| 2020-10-01 | $238.62 | Not available in this setting | RVU20D |
| 2020-07-01 | $238.62 | Not available in this setting | RVU20C |
| 2020-04-01 | $238.62 | Not available in this setting | RVU20B |
| 2020-01-01 | $238.62 | Not available in this setting | RVU20A |
| 2019-10-01 | $235.84 | Not available in this setting | RVU19D |
| 2019-07-01 | $235.84 | Not available in this setting | RVU19C |
| 2019-04-01 | $235.84 | Not available in this setting | RVU19B |
| 2019-01-01 | $235.84 | Not available in this setting | RVU19A |
| 2018-10-01 | $239.49 | Not available in this setting | RVU18D |
| 2018-07-01 | $239.49 | Not available in this setting | RVU18C |
| 2018-04-01 | $239.49 | Not available in this setting | RVU18B |
| 2018-01-01 | $239.49 | Not available in this setting | RVU18AR1 |
| 2017-10-01 | $237.56 | Not available in this setting | RVU17D |
| 2017-07-01 | $237.56 | Not available in this setting | RVU17C |
| 2017-04-01 | $237.56 | Not available in this setting | RVU17B |
| 2017-01-01 | $237.56 | Not available in this setting | RVU17A |
| 2016-10-01 | Additional calculation required | Not available in this setting | RVU16D |
| 2016-07-01 | Additional calculation required | Not available in this setting | RVU16C |
| 2016-04-01 | Additional calculation required | Not available in this setting | RVU16B |
| 2016-01-01 | Additional calculation required | Not available in this setting | RVU16A |
| 2015-10-01 | $237.96 | Not available in this setting | RVU15D |
| 2015-07-01 | $237.96 | Not available in this setting | RVU15C |
| 2015-04-01 | $236.77 | Not available in this setting | RVU15B |
| 2015-01-01 | $236.77 | Not available in this setting | RVU15A |
| 2014-10-01 | $223.12 | Not available in this setting | RVU14D |
| 2014-07-01 | $223.12 | Not available in this setting | RVU14C |
| 2014-04-01 | $223.12 | Not available in this setting | RVU14B |
| 2014-01-01 | $223.12 | Not available in this setting | RVU14A |
| 2013-10-01 | Additional calculation required | Not available in this setting | RVU13D |
| 2013-07-01 | Additional calculation required | Not available in this setting | RVU13C |
| 2013-04-01 | Additional calculation required | Not available in this setting | RVU13B |
| 2013-01-01 | Additional calculation required | Not available in this setting | RVU13AR |
Where the Washington, DC area rate applies
Washington, DC area is a Medicare payment area, not a city. Our Census mapping connects it to 1 cities and communities in District of Columbia. Some span more than one payment area; confirm with the service ZIP.
- Washington
93970 billing questions
When should 93971 be reported instead of 93970?
Use 93971 for a unilateral extremity venous study or a limited examination. Use 93970 when both arms or both legs receive a complete venous study.
Should modifier 50 be added when both legs are scanned?
No. The code is already priced as bilateral, so modifier 50 does not increase payment.
Does scanning both legs require two units?
No. One complete bilateral study of the legs is one unit of 93970, not one unit per leg.
How is the service split between a hospital and the reading physician?
The physician who interprets the study in a facility reports 93970 with modifier 26, while the facility bills for the technical service. An office providing both portions reports the global service without either component modifier.
Is an arterial duplex on the same day separately reportable?
A separately indicated and documented bilateral lower extremity arterial duplex may be reported with 93925. When eligible cardiovascular diagnostic tests are billed together, the CMS multiple procedure reduction applies to the technical component.
What documentation supports the complete bilateral study?
The record should include images, the venous segments examined on both sides, compression and flow findings, and a signed interpretation addressing each side. Include reflux findings when reflux is assessed.
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
Show the CMS file lines behind this rate
Fee sheets · Coming soon
Put 93970 and the rest of your codes on one sheet
Your codes at your locality, with payer contracts beside Medicare.
Join the waitlist