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CPT code 92512: Nasal function test, airflow and resistance2026 Medicare rate & RVUs in Marin County, CA

Objective nasal function testing measures airflow or resistance to assess nasal obstruction, such as when symptoms persist despite an unrevealing visual examination.

CMS RVU26DEffective Oct 1, 2026One payment locality3.2K Medicare services in 2024

In Marin County, CA, Medicare pays $84.88 for 92512 in the office and $26.01 when it’s performed in a hospital or facility.

$84.88Office (non-facility)
$26.01Hospital or facility
+30.3%vs the national office rate ($65.13)

Check a contract rate as a % of Medicare · 92512 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 92512 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Marin County, CA
  2. What 92512 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 92512 covers

This study evaluates how air moves through the nose, including measurements of airflow or resistance during breathing. Rhinomanometry is a typical method. Otolaryngologists and other clinicians who evaluate nasal obstruction may use it in an office or testing setting when symptoms such as persistent congestion or impaired nasal breathing call for an objective functional assessment.

Report 92512 for the nasal function study, not for visual inspection alone. The record should identify the clinical question, testing method, relevant conditions during testing, measured findings, and interpretation. These details distinguish functional measurement from nasal endoscopy or examination and support why the study was performed. Report the completed study rather than separate units for individual breaths or readings.

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 92512

Across 109 of 109 payment localities, the office rate for 92512 runs from $58.03 in Arkansas to $86.72 in San Benito County, CA. Marin County, CA pays $84.88. The RVUs are the same everywhere; the geographic indexes change the dollars.

92512 in Marin County, CA vs other payment areas
  1. Marin County, CA · this page$84.88
  2. Bakersfield, CA · California$69.34−$15.54
  3. Chico, CA · California$69.21−$15.67
  4. El Centro, CA · California$69.22−$15.66
  5. Fresno, CA · California$69.21−$15.67
  6. Hanford, CA · California$69.21−$15.67
  7. Los Angeles, CA · California$73.80−$11.08

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

Every other payment area

92512 in every other Medicare payment locality
Payment localityOfficeFacility
Madera, CACalifornia$69.21$23.45
Merced, CACalifornia$69.21$23.45
Modesto, CACalifornia$69.21$23.45
Napa, CACalifornia$80.16$25.13
Oxnard, CACalifornia$73.46$24.11
Redding, CACalifornia$69.21$23.45
Rest of CaliforniaCalifornia$69.21$23.45
Riverside, CACalifornia$69.65$23.89

92512 rates by state

Office rate range in each state. Select a state to see its payment localities.

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

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.

$58.03

$77.97

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

View every state and territory as a table
92512 office rate range by state
State / territoryOffice rate rangeLocalities
AK$76.521
AL$58.831
AR$58.031
AZ$63.521
CA$69.21–$86.7229
CO$67.981
CT$69.301
DC$74.401
DE$64.541
FL$63.79–$69.053
GA$60.45–$66.192
GU$70.841
HI$70.841
IA$60.441
ID$60.771
IL$61.90–$67.524
IN$61.101
KS$60.081
KY$59.941
LA$59.81–$62.612
MA$67.57–$74.602
MD$65.75–$74.403
ME$60.97–$64.232
MI$61.32–$64.452
MN$65.521
MO$58.78–$62.943
MS$58.421
MT$65.131
NC$61.581
ND$64.341
NE$60.781
NH$66.841
NJ$70.19–$73.682
NM$61.601
NV$64.951
NY$62.45–$76.085
OH$61.161
OK$59.941
OR$64.55–$70.162
PA$61.31–$67.592
PR$65.621
RI$66.841
SC$61.451
SD$64.241
TN$60.351
TX$60.92–$67.678
UT$62.251
VA$63.96–$74.402
VI$65.621
VT$64.011
WA$67.47–$76.182
WI$62.291
WV$59.711
WY$64.781

See 92512 in every payment locality

How the 92512 rate is calculated

Each of 92512’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 · 92512

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.54

0.54 RVUs× 1.000 GPCI

Practice expense1.37

1.37 RVUs× 1.000 GPCI

Malpractice0.04

0.04 RVUs× 1.000 GPCI

Adjusted RVUs

1.9500

Conversion factor

$33.4009

Medicare rate

$65.13

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

11,782

Code
92512
Physician work
0.54
Practice expense
1.37
Malpractice
0.04

GPCI2026.csv

25

Locality
Marin County, CA
Physician work
1.095
Practice expense
1.410
Malpractice
0.459
Office calculation for 92512 in Marin County, CA
ComponentRVULocality factorAdjusted
Physician work0.54× 1.0950.5913
Practice expense1.37× 1.4101.9317
Malpractice0.04× 0.4590.0184
Total RVUs2.5414
Conversion factor× 33.4009

Office rate, Marin County, CA$84.88

Office: (0.54 × 1.095 + 1.37 × 1.41 + 0.04 × 0.459) × $33.4009 = $84.88

Facility: (0.54 × 1.095 + 0.12 × 1.41 + 0.04 × 0.459) × $33.4009 = $26.01

Open 92512 in the RVU calculator

Payment rules and modifiers for 92512

92512 has no global surgery period, no multiple-procedure, bilateral or assistant-at-surgery adjustment, and no professional/technical split. What changes the payment is where the service happens: the place of service on the claim decides whether Medicare pays the office or the facility rate.

Place of service · 92512

Which rate does Medicare pay?

The POS code on the claim line (CMS-1500 box 24B).

POS 11 · non-facility rate · national

$65.13

Non-facility (office)
$65.13
Facility
$23.38

Higher because the practice carries its own overhead.

Codes related to 92512

Related codes aren’t interchangeable: bill the code that matches the service performed.

Codes related to 92512
CodeHow it relatesOffice range, Marin County, CA
Often billed with
92511Nasopharyngoscopy, endoscopic nasopharynx examNasopharyngoscopy may accompany functional testing when separately performed and documented.$155.94
31231Nasal endoscopy, diagnostic, without sinusoscopyNasal cavity endoscopy may accompany a separate functional study during an obstruction workup.$256.34
95004Allergy skin prick test, percutaneous, immediate reaction, per testAllergen skin testing may accompany evaluation when allergic rhinitis is also assessed.$4.76

How 92512 has changed in Marin County, CA

92512 · Office / nonfacility

$84.88

Effective 2026-10-01

The base rate is $3.41 higher than on 2025-10-01, moving from $81.47 to $84.88 (4.2%).

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

    $81.47changed to$84.88

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 0.55 changed to 0.54
    • Practice expense RVU 1.34 changed to 1.37
    • 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

    $83.84changed to$81.47

    • Conversion factor 33.2875 changed to 32.3465

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $82.47changed to$83.84

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $81.36changed to$82.47

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 1.30 changed to 1.34
    • Work GPCI 1.082 changed to 1.088
    • Practice expense GPCI 1.374 changed to 1.419
    • Malpractice GPCI 0.487 changed to 0.470

  5. January 1, 2023

    RVU23A

    $78.69changed to$81.36

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 1.25 changed to 1.30
    • Work GPCI 1.077 changed to 1.082
    • Practice expense GPCI 1.329 changed to 1.374
    • Malpractice GPCI 0.504 changed to 0.487

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $74.78changed to$78.69

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 1.17 changed to 1.25
    • Work GPCI 1.071 changed to 1.077
    • Practice expense GPCI 1.311 changed to 1.329

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $73.17changed to$74.78

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 1.09 changed to 1.17
    • Malpractice RVU 0.05 changed to 0.04
    • 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, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $72.48changed to$73.17

    • Conversion factor 36.0391 changed to 36.0896
    • Malpractice RVU 0.04 changed to 0.05
    • Work GPCI 1.065 changed to 1.068
    • Practice expense GPCI 1.291 changed to 1.299
    • Malpractice GPCI 0.458 changed to 0.481

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $71.87changed to$72.48

    • Conversion factor 35.9996 changed to 36.0391
    • Work GPCI 1.062 changed to 1.065
    • Practice expense GPCI 1.279 changed to 1.291

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $72.66changed to$71.87

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 1.12 changed to 1.09
    • 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.

  11. January 1, 2017

    RVU17A

    No ratechanged to$72.66

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C, RVU13D, RVU14A, RVU14B, RVU14C, RVU14D, RVU15A, RVU15B, RVU15C, RVU15D, RVU16A, RVU16B, RVU16C, RVU16D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$84.88$26.01RVU26D
2026-07-01$84.88$26.01RVU26C
2026-04-01$84.88$26.01RVU26B
2026-01-01$84.88$26.01RVU26A
2025-10-01$81.47$30.06RVU25D
2025-07-01$81.47$30.06RVU25C
2025-04-01$81.47$30.06RVU25B
2025-01-01$81.47$30.06RVU25A
2024-10-01$83.84$30.94RVU24D
2024-07-01$83.84$30.94RVU24C
2024-04-01$83.84$30.94RVU24B
2024-03-09$83.84$30.94RVU24AR
2024-01-01$82.47$30.43RVU24A
2023-10-01$81.36$31.07RVU23D
2023-07-01$81.36$31.07RVU23C
2023-04-01$81.36$31.07RVU23B
2023-01-01$81.36$31.07RVU23A
2022-10-01$78.69$31.31RVU22D
2022-07-01$78.69$31.31RVU22C
2022-04-01$78.69$31.31RVU22B
2022-01-01$78.69$31.31RVU22A
2021-10-01$74.78$30.86RVU21D
2021-07-01$74.78$30.86RVU21C
2021-04-01$74.78$30.86RVU21B
2021-01-01$74.78$30.86RVU21A
2020-10-01$73.17$31.91RVU20D
2020-07-01$73.17$31.91RVU20C
2020-04-01$73.17$31.91RVU20B
2020-01-01$73.17$31.91RVU20A
2019-10-01$72.48$31.54RVU19D
2019-07-01$72.48$31.54RVU19C
2019-04-01$72.48$31.54RVU19B
2019-01-01$72.48$31.54RVU19A
2018-10-01$71.87$31.82RVU18D
2018-07-01$71.87$31.82RVU18C
2018-04-01$71.87$31.82RVU18B
2018-01-01$71.87$31.82RVU18AR1
2017-10-01$72.66$31.60RVU17D
2017-07-01$72.66$31.60RVU17C
2017-04-01$72.66$31.60RVU17B
2017-01-01$72.66$31.60RVU17A
2016-10-01Rate data unavailableRate data unavailableRVU16D
2016-07-01Rate data unavailableRate data unavailableRVU16C
2016-04-01Rate data unavailableRate data unavailableRVU16B
2016-01-01Rate data unavailableRate data unavailableRVU16A
2015-10-01Rate data unavailableRate data unavailableRVU15D
2015-07-01Rate data unavailableRate data unavailableRVU15C
2015-04-01Rate data unavailableRate data unavailableRVU15B
2015-01-01Rate data unavailableRate data unavailableRVU15A
2014-10-01Rate data unavailableRate data unavailableRVU14D
2014-07-01Rate data unavailableRate data unavailableRVU14C
2014-04-01Rate data unavailableRate data unavailableRVU14B
2014-01-01Rate data unavailableRate data unavailableRVU14A
2013-10-01Rate data unavailableRate data unavailableRVU13D
2013-07-01Rate data unavailableRate data unavailableRVU13C
2013-04-01Rate data unavailableRate data unavailableRVU13B
2013-01-01Rate data unavailableRate data unavailableRVU13AR

Price 92512 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

92512 billing questions

How does 92512 differ from nasopharyngoscopy?

92512 measures nasal function, such as airflow or resistance. Nasopharyngoscopy (92511) documents endoscopic visualization of the nasopharynx.

Can 92512 be reported with nasal endoscopy?

A functional study and nasal endoscopy describe different services. When both are performed, document the measurements separately from the endoscopic findings.

What should the record include?

Document the reason for testing, the method used, the findings, and their interpretation. Include clinical context that supports evaluating nasal airflow or resistance.

Are individual readings billed as separate units?

Report the completed nasal function study, not each breath, measurement, or instrument reading as a separate unit.

Does a visual nasal examination alone support 92512?

No. The service is functional testing; visual inspection without nasal airflow or resistance measurement describes a different service.

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 92512PPRRVU2026_Oct_nonQPP.csv, line 11,782 (RVU26D)
Geographic factors for Marin County, CAGPCI2026.csv, line 25 (RVU26D)

Open CMS sourceHow we calculate rates

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