# CPT 27487

> Medicare paid $1,836.24 for CPT 27487 in the office (non-facility) setting and $1,836.24 in a facility under the Q2 2020 Physician Fee Schedule, effective April 2020. These are the national allowed amounts before the ~2% sequestration cut and before locality (GPCI) adjustment. This price has been unchanged since Q1 2020, when it increased 0.4%.

## What it is

Redo knee replacement surgery in which the failed implants are removed and both the thigh-bone component and the entire shin-bone side are replaced, with bone graft used if needed to fill defects left behind. Revision work is longer and more demanding than a first-time replacement because the old parts and any cement must be extracted without destroying the remaining bone. It is distinguished from revisions that swap only one part of the knee.

## Selected release

- Release: Q2 2020 (2020 B)
- Effective: April 1 – June 30, 2020
- Status indicator: A
- Office (non-facility) national allowed amount: $1836.24
- Facility national allowed amount: $1836.24
- Sequestration: not applied

## RVUs and formula

- Work RVU: 27.11
- Office (non-facility) practice expense RVU: 18.42
- Facility practice expense RVU: 18.42
- Malpractice RVU: 5.35
- Conversion factor: 36.0896
- Formula: `(work_rvu × work_gpci + pe_rvu × pe_gpci + mp_rvu × mp_gpci) × conversion_factor`

## Source and citation

- Source: Physician relative value file (Q2 2020)
- CMS file: https://www.cms.gov/files/zip/rvu20b-updated-05012020.zip
- Parsed file: PPRRVU20_APR.csv, row 7,334
- Canonical page: https://localishealth.com/cpt/27487/2020/A
- Release-specific citation URL: https://localishealth.com/cpt/27487/2020/B
- Last significant update: 2026-08-04T03:09:33+00:00