# CPT 64646

> The national PFS baseline was $156.77 for CPT 64646 in the Office (non-facility) setting and $120.37 in a facility under the Q4 2019 Physician Fee Schedule, effective October 2019. These are the national allowed amounts before locality (GPCI) adjustment; sequestration is excluded. Across payment localities, the office amount is $137.07–$193.62 and the facility amount is $105.41–$152.96. This amount has been unchanged since Q1 2019, when it increased 1.3%.

## Selected release

- Release: Q4 2019 (2019 D)
- Effective: October 1 – December 31, 2019
- Status indicator: A
- Office (non-facility) national allowed amount: $156.77
- Facility national allowed amount: $120.37
- Sequestration: not applied

## RVUs and formula

- Work RVU: 1.80
- Office (non-facility) practice expense RVU: 2.12
- Facility practice expense RVU: 1.11
- Malpractice RVU: 0.43
- Conversion factor: 36.0391
- Formula: `(work_rvu × work_gpci + pe_rvu × pe_gpci + mp_rvu × mp_gpci) × conversion_factor`

## Source and citation

- Source: Physician relative value file (Q4 2019)
- CMS file: https://www.cms.gov/medicare/medicare-fee-for-service-payment/physicianfeesched/downloads/rvu19d.zip
- Parsed file: PPRRVU19_OCT.csv, row 11,337
- Canonical page: https://localishealth.com/cpt/64646/2019/A
- Release-specific citation URL: https://localishealth.com/cpt/64646/2019/D
- Last significant update: 2026-08-04T03:09:13+00:00