CPT code 70370: Throat imaging, pharynx or larynx2026 Medicare rate & RVUs in Marin County, CA

Reports radiographic and fluoroscopic imaging of the pharynx or larynx when the clinical question concerns these throat structures.

CMS RVU26DEffective Oct 1, 2026One payment locality246 Medicare services in 2024

In Marin County, CA, Medicare pays $137.07 for 70370 in the office.

$137.07Office (non-facility)
Not available in this settingHospital or facility
+36.8%vs the national office rate ($100.20)

Check a contract rate as a % of Medicare · 70370 nationwide

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

We’ll open 70370 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Marin County, CA
  2. What 70370 covers
  3. Compared with other areas
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Related codes
  8. Rate history
  9. Where it applies
  10. Billing questions
  11. Sources

What 70370 covers

This examination uses x-ray imaging, with fluoroscopy and possibly magnification, to assess the pharynx or larynx. It may be used to evaluate a structural concern involving the throat; contrast may be used when needed to outline the anatomy. A radiologic technologist typically obtains the images in an imaging department, hospital, or other setting equipped for fluoroscopy, and a physician interprets the study.

Select this code when the documented examination targets the pharynx or larynx, rather than a general soft-tissue neck survey or a dedicated assessment of swallowing function. The record should identify the clinical indication, anatomy imaged, images obtained, and physician interpretation. CMS recognizes separate professional and technical portions: report modifier 26 for the interpretation, TC for the equipment and staff portion, or no modifier when billing the global service that includes both.

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 Marin County, CA compares for 70370

Across 109 of 109 payment localities, the office rate for 70370 runs from $87.19 in Arkansas to $140.15 in San Benito County, CA. Marin County, CA pays $137.07. The RVUs are the same everywhere; the geographic indexes change the dollars.

70370 in Marin County, CA vs other payment areas
  1. Marin County, CA · this page$137.07
  2. Bakersfield, CA · California$108.54−$28.53
  3. Chico, CA · California$108.44−$28.63
  4. El Centro, CA · California$108.45−$28.62
  5. Fresno, CA · California$108.44−$28.63
  6. Hanford, CA · California$108.44−$28.63
  7. Los Angeles, CA · California$116.55−$20.52

Other areas in California first, then benchmark localities. Bars start at $0.

Every other payment area

70370 in every other Medicare payment locality
Payment localityOfficeFacility
Madera, CACalifornia$108.44—
Merced, CACalifornia$108.44—
Modesto, CACalifornia$108.44—
Napa, CACalifornia$128.62—
Oxnard, CACalifornia$116.28—
Redding, CACalifornia$108.44—
Rest of CaliforniaCalifornia$108.44—
Riverside, CACalifornia$108.77—

70370 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.

$87.19

$124.30

Color shows the midpoint of each state’s locality range.

View every state and territory as a table
70370 office rate range by state
State / territoryOffice rate rangeLocalities
AK$110.701
AL$88.661
AR$87.191
AZ$97.301
CA$108.44–$140.1529
CO$105.791
CT$107.461
DC$116.691
DE$99.091
FL$96.80–$105.383
GA$90.80–$101.862
GU$111.951
HI$111.951
IA$92.051
ID$92.571
IL$93.04–$103.454
IN$93.201
KS$91.181
KY$90.261
LA$89.94–$95.102
MA$104.87–$117.752
MD$101.29–$116.693
ME$92.72–$99.032
MI$92.60–$97.782
MN$102.071
MO$87.92–$95.943
MS$87.591
MT$100.201
NC$93.891
ND$99.611
NE$92.741
NH$103.721
NJ$108.89–$115.142
NM$93.031
NV$100.121
NY$95.46–$118.525
OH$92.481
OK$90.471
OR$99.55–$109.972
PA$92.86–$104.232
PR$101.161
RI$103.221
SC$93.301
SD$99.541
TN$91.651
TX$92.14–$105.268
UT$94.771
VA$98.40–$116.692
VI$101.161
VT$98.821
WA$104.81–$120.712
WI$95.781
WV$89.001
WY$99.941

See 70370 in every payment locality

How the 70370 rate is calculated

Each of 70370’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 · 70370

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.31

0.31 RVUs× 1.000 GPCI

Practice expense2.66

2.66 RVUs× 1.000 GPCI

Malpractice0.03

0.03 RVUs× 1.000 GPCI

Adjusted RVUs

3.0000

Conversion factor

$33.4009

Medicare rate

$100.20

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

The exact Marin County, CA inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

7,766

Code
70370
Physician work
0.31
Practice expense
2.66
Malpractice
0.03

GPCI2026.csv

25

Locality
Marin County, CA
Physician work
1.095
Practice expense
1.410
Malpractice
0.459
Office calculation for 70370 in Marin County, CA
ComponentRVULocality factorAdjusted
Physician work0.31× 1.0950.3394
Practice expense2.66× 1.4103.7506
Malpractice0.03× 0.4590.0138
Total RVUs4.1038
Conversion factor× 33.4009

Office rate, Marin County, CA$137.07

Office: (0.31 × 1.095 + 2.66 × 1.41 + 0.03 × 0.459) × $33.4009 = $137.07

Open 70370 in the RVU calculator

Payment rules and modifiers for 70370

The CMS indicators that decide how 70370 is paid alongside other services.

CMS payment indicators · 70370

Throat imaging, pharynx or larynx

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical1Diagnostic test with separate professional (26) and technical (TC) components.

What modifiers do to the payment

Modifier 26 · payment effect

With and without the modifier

70370 without 26 · national office

$100.20

Throat imaging, pharynx or larynx

70370-26 · Professional component

$15.36

Pays only the interpretation and report.

When to use modifier 26

How 70370 has changed in Marin County, CA

70370 · Office / nonfacility

$137.07

Effective 2026-10-01

The base rate is $0.05 higher than on 2025-10-01, moving from $137.02 to $137.07 (0.0%).

It is unchanged from the immediately preceding available release, effective 2026-07-01.

Base rate by release · bars start at $0 · select a bar to compare

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
  1. January 1, 2026

    RVU26A

    $137.02changed to$137.07

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 0.32 changed to 0.31
    • Practice expense RVU 2.73 changed to 2.66
    • Work GPCI 1.088 changed to 1.095
    • Practice expense GPCI 1.419 changed to 1.410
    • Malpractice GPCI 0.470 changed to 0.459

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    No ratechanged to$137.02

    Held through RVU25B, RVU25C, RVU25D.

  3. January 1, 2022

    RVU22A

    $125.93changed toNo rate

    Held through RVU22B, RVU22C, RVU22D, RVU23A, RVU23B, RVU23C, RVU23D, RVU24A, RVU24AR, RVU24B, RVU24C, RVU24D.

  4. October 1, 2021

    RVU21D

    No ratechanged to$125.93

  5. July 1, 2021

    RVU21C

    $125.93changed toNo rate

  6. January 1, 2021

    RVU21A

    $113.47changed to$125.93

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 2.15 changed to 2.48
    • Malpractice RVU 0.02 changed to 0.03
    • Work GPCI 1.068 changed to 1.071
    • Practice expense GPCI 1.299 changed to 1.311
    • Malpractice GPCI 0.481 changed to 0.504

    Held through RVU21B.

  7. January 1, 2020

    RVU20A

    No ratechanged to$113.47

    Held through RVU20B, RVU20C, RVU20D.

  8. January 1, 2019

    RVU19A

    $90.38changed toNo rate

    Held through RVU19B, RVU19C, RVU19D.

  9. January 1, 2018

    RVU18AR1

    $95.68changed to$90.38

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 1.82 changed to 1.69
    • Malpractice RVU 0.03 changed to 0.02
    • Work GPCI 1.058 changed to 1.062
    • Practice expense GPCI 1.271 changed to 1.279
    • Malpractice GPCI 0.477 changed to 0.458

    Held through RVU18B, RVU18C, RVU18D.

  10. January 1, 2017

    RVU17A

    No ratechanged to$95.68

    Held through RVU17B, RVU17C, RVU17D.

  11. January 1, 2016

    RVU16A

    No ratechanged toNo rate

    Held through RVU16B, RVU16C, RVU16D.

  12. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C, RVU13D, RVU14A, RVU14B, RVU14C, RVU14D, RVU15A, RVU15B, RVU15C, RVU15D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$137.07Not available in this settingRVU26D
2026-07-01$137.07Not available in this settingRVU26C
2026-04-01$137.07Not available in this settingRVU26B
2026-01-01$137.07Not available in this settingRVU26A
2025-10-01$137.02Not available in this settingRVU25D
2025-07-01$137.02Not available in this settingRVU25C
2025-04-01$137.02Not available in this settingRVU25B
2025-01-01$137.02Not available in this settingRVU25A
2024-10-01Additional calculation requiredNot available in this settingRVU24D
2024-07-01Additional calculation requiredNot available in this settingRVU24C
2024-04-01Additional calculation requiredNot available in this settingRVU24B
2024-03-09Additional calculation requiredNot available in this settingRVU24AR
2024-01-01Additional calculation requiredNot available in this settingRVU24A
2023-10-01Additional calculation requiredNot available in this settingRVU23D
2023-07-01Additional calculation requiredNot available in this settingRVU23C
2023-04-01Additional calculation requiredNot available in this settingRVU23B
2023-01-01Additional calculation requiredNot available in this settingRVU23A
2022-10-01Additional calculation requiredNot available in this settingRVU22D
2022-07-01Additional calculation requiredNot available in this settingRVU22C
2022-04-01Additional calculation requiredNot available in this settingRVU22B
2022-01-01Additional calculation requiredNot available in this settingRVU22A
2021-10-01$125.93Not available in this settingRVU21D
2021-07-01Additional calculation requiredNot available in this settingRVU21C
2021-04-01$125.93Not available in this settingRVU21B
2021-01-01$125.93Not available in this settingRVU21A
2020-10-01$113.47Not available in this settingRVU20D
2020-07-01$113.47Not available in this settingRVU20C
2020-04-01$113.47Not available in this settingRVU20B
2020-01-01$113.47Not available in this settingRVU20A
2019-10-01Additional calculation requiredNot available in this settingRVU19D
2019-07-01Additional calculation requiredNot available in this settingRVU19C
2019-04-01Additional calculation requiredNot available in this settingRVU19B
2019-01-01Additional calculation requiredNot available in this settingRVU19A
2018-10-01$90.38Not available in this settingRVU18D
2018-07-01$90.38Not available in this settingRVU18C
2018-04-01$90.38Not available in this settingRVU18B
2018-01-01$90.38Not available in this settingRVU18AR1
2017-10-01$95.68Not available in this settingRVU17D
2017-07-01$95.68Not available in this settingRVU17C
2017-04-01$95.68Not available in this settingRVU17B
2017-01-01$95.68Not available in this settingRVU17A
2016-10-01Additional calculation requiredNot available in this settingRVU16D
2016-07-01Additional calculation requiredNot available in this settingRVU16C
2016-04-01Additional calculation requiredNot available in this settingRVU16B
2016-01-01Additional calculation requiredNot available in this settingRVU16A
2015-10-01Rate data unavailableNot available in this settingRVU15D
2015-07-01Rate data unavailableNot available in this settingRVU15C
2015-04-01Rate data unavailableNot available in this settingRVU15B
2015-01-01Rate data unavailableNot available in this settingRVU15A
2014-10-01Rate data unavailableNot available in this settingRVU14D
2014-07-01Rate data unavailableNot available in this settingRVU14C
2014-04-01Rate data unavailableNot available in this settingRVU14B
2014-01-01Rate data unavailableNot available in this settingRVU14A
2013-10-01Rate data unavailableNot available in this settingRVU13D
2013-07-01Rate data unavailableNot available in this settingRVU13C
2013-04-01Rate data unavailableNot available in this settingRVU13B
2013-01-01Rate data unavailableNot available in this settingRVU13AR

Price 70370 for an earlier date of service

Where the Marin County, CA rate applies

Marin County, CA is a Medicare payment area, not a city. Our Census mapping connects it to 31 cities and communities in California. Some span more than one payment area; confirm with the service ZIP.

  • Alto
  • Belvedere
  • Black Point-Green Point
  • Bolinas
  • Corte Madera
  • Dillon Beach
  • Fairfax
  • Inverness

Browse all communities in California

70370 billing questions

When should 70370 be chosen over 70371?

Use 70370 for radiographic examination of the pharynx or larynx without the speech evaluation described by 70371. The documented service and clinical question should support the choice.

How does 70370 differ from a swallowing-function study?

70370 focuses on radiographic evaluation of the pharynx or larynx. A study specifically evaluating swallowing function with cine or video imaging may be reported with 74230 instead.

Which modifier identifies the interpretation?

Append modifier 26 when billing only the physician's professional interpretation. Modifier TC identifies the technical portion; billing without either modifier represents the global service.

What documentation supports reporting 70370?

Document the reason for the examination, the pharyngeal or laryngeal anatomy evaluated, the imaging performed, and the physician's interpretation.

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
RVUs for 70370PPRRVU2026_Oct_nonQPP.csv, line 7,766 (RVU26D)
Geographic factors for Marin County, CAGPCI2026.csv, line 25 (RVU26D)

Open CMS sourceHow we calculate rates

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