# CPT 17312

> Medicare paid $398.52 for CPT 17312 in the office (non-facility) setting and $209.16 in a facility under the Q3 2018 Physician Fee Schedule, effective July 2018. These are the national allowed amounts before the ~2% sequestration cut and before locality (GPCI) adjustment. This price has been unchanged since Q1 2018, when it increased 0.6%.

## What it is

Each further round of Mohs micrographic surgery on the head, neck, hands, feet, or genitals after the first one. When the microscope shows tumor still reaching an edge, the surgeon returns to that specific area, removes another thin layer, and processes and reads it the same way. This is counted once per additional stage, however many stages a tumor needs, and it pairs with the first-stage code for the same body regions.

## Selected release

- Release: Q3 2018 (2018 C)
- Effective: July 1 – September 30, 2018
- Status indicator: A
- Office (non-facility) national allowed amount: $398.52
- Facility national allowed amount: $209.16
- Sequestration: not applied

## RVUs and formula

- Work RVU: 3.30
- Office (non-facility) practice expense RVU: 7.27
- Facility practice expense RVU: 2.01
- Malpractice RVU: 0.50
- Conversion factor: 35.9996
- Formula: `(work_rvu × work_gpci + pe_rvu × pe_gpci + mp_rvu × mp_gpci) × conversion_factor`

## Source and citation

- Source: Physician relative value file (Q3 2018)
- CMS file: https://www.cms.gov/medicare/medicare-fee-for-service-payment/physicianfeesched/downloads/rvu18c1.zip
- Parsed file: PPRRVU18_JUL.csv, row 5,624
- Canonical page: https://localishealth.com/cpt/17312/2018/A
- Release-specific citation URL: https://localishealth.com/cpt/17312/2018/C
- Last significant update: 2026-08-04T03:08:27+00:00