# CPT 86480

> Not at a published national rate. CPT 86480 carries status X (statutory exclusion) in the Q3 2017 release. The statutory definition of physician services does not include this item. Treat the blank amount as unpriced, not as $0.

## What it is

A blood test for tuberculosis infection that mixes the patient's white blood cells with TB-specific proteins and measures the interferon-gamma they release in response. A strong response means the immune system has met tuberculosis before. Unlike the old skin test, it needs only one visit, is not affected by prior BCG vaccination, and does not require the patient to return to have a reaction read.

## Selected release

- Release: Q3 2017 (2017 C)
- Effective: July 1 – September 30, 2017
- Status indicator: X
- 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: 35.8887
- Formula: `(work_rvu × work_gpci + pe_rvu × pe_gpci + mp_rvu × mp_gpci) × conversion_factor`

## Source and citation

- Source: Physician relative value file (Q3 2017)
- CMS file: https://www.cms.gov/medicare/medicare-fee-for-service-payment/physicianfeesched/downloads/rvu17c.zip
- Parsed file: PPRRVU17_JULY_V0503.csv, row 14,188
- Canonical page: https://localishealth.com/cpt/86480/2014/B
- Release-specific citation URL: https://localishealth.com/cpt/86480/2017/C
- Last significant update: 2026-08-04T03:07:49+00:00