# CPT 40520

> The national PFS baseline was $516.44 for CPT 40520 in the Office (non-facility) setting and $364.29 in a facility under the Q4 2023 Physician Fee Schedule, effective October 2023. These are the national allowed amounts before locality (GPCI) adjustment; sequestration is excluded. Across payment localities, the office amount is $455.58–$656.93 and the facility amount is $325.79–$453.52. This amount has been unchanged since Q1 2023, when it decreased 0.8%.

## Selected release

- Release: Q4 2023 (2023 D)
- Effective: October 1 – December 31, 2023
- Status indicator: A
- Office (non-facility) national allowed amount: $516.44
- Facility national allowed amount: $364.29
- Sequestration: not applied

## RVUs and formula

- Work RVU: 4.79
- Office (non-facility) practice expense RVU: 9.73
- Facility practice expense RVU: 5.24
- Malpractice RVU: 0.72
- 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 (Q4 2023)
- CMS file: https://www.cms.gov/files/zip/rvu23d.zip
- Parsed file: PPRRVU23_OCT.csv, row 9,994
- Canonical page: https://localishealth.com/cpt/40520/2023/A
- Release-specific citation URL: https://localishealth.com/cpt/40520/2023/D
- Last significant update: 2026-08-04T03:13:13+00:00