# CPT 37243

> Medicare paid $8,849.30 for CPT 37243 in the office (non-facility) setting and $552.70 in a facility under the Q3 2023 Physician Fee Schedule, effective July 2023. These are the national allowed amounts before the ~2% sequestration cut and before locality (GPCI) adjustment. This price has been unchanged since Q1 2023, when it decreased 5.1%.

## What it is

Blocking the blood supply to a tumor or to a segment of an organ on purpose, by threading a catheter to the feeding artery and injecting particles, beads, or coils until flow stops. Starving the target of blood shrinks it, kills tumor tissue, or reduces the size of an overactive organ. Within the embolization family this is the tumor-and-organ version, distinct from the codes used for vascular malformations and aneurysms, for veins, and for stopping active bleeding. The angiographic imaging needed to map the vessels and confirm the result is included in the same service.

## Selected release

- Release: Q3 2023 (2023 C)
- Effective: July 1 – September 30, 2023
- Status indicator: A
- Office (non-facility) national allowed amount: $8849.30
- Facility national allowed amount: $552.70
- Sequestration: not applied

## RVUs and formula

- Work RVU: 11.74
- Office (non-facility) practice expense RVU: 248.20
- Facility practice expense RVU: 3.37
- Malpractice RVU: 1.20
- Conversion factor: 33.8872
- Formula: `(work_rvu × work_gpci + pe_rvu × pe_gpci + mp_rvu × mp_gpci) × conversion_factor`

## Source and citation

- Source: Physician relative value file (Q3 2023)
- CMS file: https://www.cms.gov/files/zip/rvu23c.zip
- Parsed file: PPRRVU23_JUL.csv, row 9,786
- Canonical page: https://localishealth.com/cpt/37243/2023/A
- Release-specific citation URL: https://localishealth.com/cpt/37243/2023/C
- Last significant update: 2026-08-04T03:12:57+00:00