# CPT 33958

> The national PFS baseline was $187.38 for CPT 33958 in the office (non-facility) setting and $187.38 in a facility under the Q1 2021 Physician Fee Schedule, effective January 2021. These are the national allowed amounts before locality (GPCI) adjustment; sequestration is excluded. Across payment localities, both settings' amount is $163.09–$248.03. This is a 3.1% decrease from the previous quarter.

## Selected release

- Release: Q1 2021 (2021 A)
- Effective: January 1 – March 31, 2021
- Status indicator: A
- Office (non-facility) national allowed amount: $187.38
- Facility national allowed amount: $187.38
- Sequestration: not applied

## RVUs and formula

- Work RVU: 3.51
- Office (non-facility) practice expense RVU: 1.08
- Facility practice expense RVU: 1.08
- Malpractice RVU: 0.78
- 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 (Q1 2021)
- CMS file: https://www.cms.gov/files/zip/rvu21a-updated-01052021.zip
- Parsed file: PPRRVU21_JAN.csv, row 8,574
- Canonical page: https://localishealth.com/cpt/33958/2021/A
- Release-specific citation URL: https://localishealth.com/cpt/33958/2021/A
- Last significant update: 2026-08-04T03:10:16+00:00