# CPT 00400

> CPT 00400 is an anesthesia code, so Medicare has no single national rate: payment is (base units + time units) × the locality's anesthesia conversion factor — for example, about $198.27 for a 90-minute case in Dallas, TX under the Q2 2016 release, before sequestration.

## What it is

Anesthesia care for operations on skin and the tissue just beneath it on the arms, legs, front of the trunk, or perineum, when no more specific anesthesia code applies. Think surface-level work rather than surgery entering the chest, abdomen or a joint. Typical accompanying procedures are wide excision of a skin cancer, skin grafting for a burn or wound, or debridement of an infected wound.

## Selected release

- Release: Q2 2016 (2016 B)
- Effective: April 1 – June 30, 2016
- Status indicator: J
- Office (non-facility) national allowed amount: not published
- Facility national allowed amount: not published
- Sequestration: not applied

## RVUs and formula

- Work RVU: not published
- Office (non-facility) practice expense RVU: not published
- Facility practice expense RVU: not published
- Malpractice RVU: not published
- Conversion factor: 35.8043
- Formula: `(work_rvu × work_gpci + pe_rvu × pe_gpci + mp_rvu × mp_gpci) × conversion_factor`

## Source and citation

- Source: Physician relative value file (Q2 2016)
- CMS file: https://www.cms.gov/medicare/medicare-fee-for-service-payment/physicianfeesched/downloads/rvu16b.zip
- Parsed file: PPRRVU16_April_V0202.csv, row 4,366
- Canonical page: https://localishealth.com/cpt/00400/2016/B
- Release-specific citation URL: https://localishealth.com/cpt/00400/2016/B
- Last significant update: 2026-08-04T03:06:42+00:00