CPT code 76945: CVS ultrasound guidance, during CVS2026 Medicare rate & RVUs

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

What 76945 covers

This service uses ultrasound imaging to guide the instrument during chorionic villus sampling, which obtains placental tissue for prenatal diagnostic testing. It describes the guidance service, not collection of the specimen. Obstetricians, maternal-fetal medicine physicians, and radiologists may provide or report the guidance in connection with CVS.

Medicare assigns 76945 physician fee schedule status C (carrier priced): CMS publishes no national payment, and the Medicare Administrative Contractor sets payment for each claim. The service has a professional interpretation component, reportable with modifier 26, and a technical component for equipment and staff, reportable with modifier TC. Report the global service without either modifier when both components are billed together. The separate CVS procedure is represented by 59015; 76945 identifies ultrasound guidance.

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 76945 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

76945 rates by state

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

How the 76945 rate is calculated

Each of 76945’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.

Payment rules and modifiers for 76945

The CMS indicators that decide how 76945 is paid alongside other services.

What modifiers do to the payment

When to use modifier 26

76945 compared with similar codes

How to choose

76946Amniocentesis guidanceUltrasound needle guidance

Choose 76945 for guidance during chorionic villus sampling and 76946 for guidance during amniocentesis.

76942Ultrasound needle guidanceBiopsy, aspiration, injection, or localization

76942 is ultrasound guidance for needle placement in procedures such as biopsy; 76945 is specific to chorionic villus sampling.

59015Chorionic villus samplingPlacental tissue sampling

59015 represents the chorionic villus sampling procedure itself. 76945 represents ultrasound guidance used during that sampling.

59000AmniocentesisDiagnostic fluid sampling

59000 represents amniocentesis, not chorionic villus sampling guidance. Use 76945 when the service is ultrasound guidance for CVS.

Codes related to 76945

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

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

Open CMS sourceHow we calculate rates