# CPT 74183

> Medicare paid $389.76 for CPT 74183 in the office (non-facility) setting and $389.76 in a facility under the Q3 2021 Physician Fee Schedule, effective July 2021. These are the national allowed amounts before the ~2% sequestration cut and before locality (GPCI) adjustment. This price has been unchanged since Q1 2021, when it decreased 1.9%.

## What it is

An MRI of the abdomen performed both before and after an intravenous contrast agent is given. Running both phases lets the radiologist watch how a lesion takes up and washes out contrast over time, which is often the deciding evidence for what it is - a benign hemangioma and a worrying tumor can look similar on a single snapshot but behave differently across phases. MRI of the abdomen done plain only, or with contrast only, is coded separately.

## Selected release

- Release: Q3 2021 (2021 C)
- Effective: July 1 – September 30, 2021
- Status indicator: A
- Office (non-facility) national allowed amount: $389.76
- Facility national allowed amount: $389.76
- Sequestration: not applied

## RVUs and formula

- Work RVU: 2.20
- Office (non-facility) practice expense RVU: 8.85
- Facility practice expense RVU: 8.85
- Malpractice RVU: 0.12
- Conversion factor: 34.8931
- Formula: `(work_rvu × work_gpci + pe_rvu × pe_gpci + mp_rvu × mp_gpci) × conversion_factor`

## Source and citation

- Source: Physician relative value file (Q3 2021)
- CMS file: https://www.cms.gov/files/zip/rvu21c-updated-6302021.zip
- Parsed file: PPRRVU21_JUL.csv, row 12,724
- Canonical page: https://localishealth.com/cpt/74183/2021/A
- Release-specific citation URL: https://localishealth.com/cpt/74183/2021/C
- Last significant update: 2026-08-04T03:10:45+00:00