# CPT 77066

> Medicare paid $164.38 for CPT 77066 in the office (non-facility) setting and $164.38 in a facility under the Q3 2022 Physician Fee Schedule, effective July 2022. These are the national allowed amounts before the ~2% sequestration cut and before locality (GPCI) adjustment. This price has been unchanged since Q1 2022, when it decreased 1.0%.

## What it is

The same problem-driven mammogram as the single-breast study, but covering both sides. It is used when the clinical question involves both breasts, when a comparison of the two sides is needed, or when the patient has a history that calls for imaging both. Computer-aided detection is included when applied. Unlike a screening mammogram, this exam is prompted by a symptom or an earlier abnormal finding.

## Selected release

- Release: Q3 2022 (2022 C)
- Effective: July 1 – September 30, 2022
- Status indicator: A
- Office (non-facility) national allowed amount: $164.38
- Facility national allowed amount: $164.38
- Sequestration: not applied

## RVUs and formula

- Work RVU: 1.00
- Office (non-facility) practice expense RVU: 3.69
- Facility practice expense RVU: 3.69
- Malpractice RVU: 0.06
- Conversion factor: 34.6062
- Formula: `(work_rvu × work_gpci + pe_rvu × pe_gpci + mp_rvu × mp_gpci) × conversion_factor`

## Source and citation

- Source: Physician relative value file (Q3 2022)
- CMS file: https://www.cms.gov/files/zip/rvu22c-updated-06172022.zip
- Parsed file: PPRRVU22_JUL.csv, row 13,616
- Canonical page: https://localishealth.com/cpt/77066/2022/A
- Release-specific citation URL: https://localishealth.com/cpt/77066/2022/C
- Last significant update: 2026-08-04T03:11:49+00:00