# CPT 87340

> Not at a published national rate. CPT 87340 carries status X (statutory exclusion) in the Q1 2015 release. The statutory definition of physician services does not include this item. Treat the blank amount as unpriced, not as $0.

## What it is

An immunoassay that detects hepatitis B surface antigen, a protein on the outer coat of the virus that appears in blood when someone is actively infected. A positive result means live infection is present - either recent or long-standing - as opposed to the antibody tests that indicate past exposure or vaccination. It is the anchor test of the hepatitis B panel.

## Selected release

- Release: Q1 2015 (2015 A)
- Effective: January 1 – March 31, 2015
- 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: 35.7547
- Formula: `(work_rvu × work_gpci + pe_rvu × pe_gpci + mp_rvu × mp_gpci) × conversion_factor`

## Source and citation

- Source: Physician relative value file (Q1 2015)
- CMS file: https://www.cms.gov/medicare/medicare-fee-for-service-payment/physicianfeesched/downloads/rvu15a.zip
- Parsed file: PPRRVU15_V1223c.csv, row 14,042
- Canonical page: https://localishealth.com/cpt/87340/2014/B
- Release-specific citation URL: https://localishealth.com/cpt/87340/2015/A
- Last significant update: 2026-08-04T03:05:39+00:00