CPT 92518: VEMP testingMedicare rate & RVUs in Oregon
Reports ocular VEMP testing with interpretation to assess vestibular function when a clinician needs information from the eye-muscle response pathway.
Medicare pays $74.56–$80.53 for 92518 in the office in Oregon, from Rest Of Oregon to Portland. Which amount applies depends on the service address.
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 9 sections
What 92518 covers
Ocular vestibular evoked myogenic potential testing records reflex responses from muscles around the eyes after sound or vibration stimuli. Electrodes placed beneath the eyes capture the responses, which help assess vestibular function, including the utricular pathway. Audiologists commonly perform the test in audiology or otolaryngology settings, with the findings interpreted and reported as part of the service.
Use this code when the service is ocular VEMP testing with interpretation and a report, rather than cervical VEMP alone or testing both cervical and ocular responses. The record should identify the test performed and include the measured responses, interpretation, and report. CMS pricing treats this code as bilateral; modifier 50 does not increase payment.
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.
Where 92518 pays more and less in Oregon
| Payment locality | Office | Facility |
|---|---|---|
| Portland | $80.53 | $35.63 |
| Rest Of Oregon | $74.56 | $34.31 |
How the 92518 rate is calculated
Each of 92518’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 · 92518
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 0.78Practice expense 1.43Malpractice 0.04
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 92518
The CMS indicators that decide how 92518 is paid alongside other services.
CMS payment indicators · 92518
VEMP testing
| Rule | CMS value | What it means |
|---|---|---|
| Global period | XXX | The global surgery concept doesn’t apply. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| 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 | 0 | Physician service: no professional/technical split. |
92518 compared with similar codes
Compare codes
92518 vs 92517 vs 92519 vs 92540: national Medicare rates
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How to choose
- 92517VEMP testing
- 92517 reports cervical VEMP testing; 92518 reports ocular VEMP testing. Select the code for the response pathway tested.
- 92519VEMP testing
- 92519 is for testing both cervical and ocular VEMP responses. Use 92518 when the reported VEMP service is ocular only.
- 92540Vestibular evaluation
- 92540 represents a basic vestibular evaluation, not ocular VEMP testing. Choose based on the evaluation actually performed and reported.
92518 billing questions
How does this differ from 92517?
92518 is for ocular VEMP testing. Use 92517 for cervical VEMP testing.
When is 92519 the better choice?
Use 92519 when both cervical and ocular VEMP testing are performed and interpreted. This code covers ocular testing only.
Does the code include interpretation and a report?
Yes. The service includes ocular VEMP testing, interpretation, and reporting; document the recorded responses and clinical interpretation.
Should modifier 50 be added for testing both sides?
CMS pricing treats 92518 as bilateral, and modifier 50 does not increase payment.
What documentation supports reporting 92518?
Document that ocular VEMP testing was performed, the responses obtained, and the interpretation and report. Distinguish ocular testing from cervical-only or combined testing.
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
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