# CPT 84443

> Not at a published national rate. CPT 84443 carries status X (statutory exclusion) in the Q4 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

A blood test measuring thyroid-stimulating hormone, the primary screen for thyroid function. It is used to detect and monitor both underactive and overactive thyroid conditions.

## Selected release

- Release: Q4 2015 (2015 D)
- Effective: October 1 – December 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: 35.9335
- Formula: `(work_rvu × work_gpci + pe_rvu × pe_gpci + mp_rvu × mp_gpci) × conversion_factor`

## Source and citation

- Source: Physician relative value file (Q4 2015)
- CMS file: https://www.cms.gov/medicare/medicare-fee-for-service-payment/physicianfeesched/downloads/rvu15d.zip
- Parsed file: PPRRVU15_OCT05_V1001.csv, row 13,563
- Canonical page: https://localishealth.com/cpt/84443/2014/B
- Release-specific citation URL: https://localishealth.com/cpt/84443/2015/D
- Last significant update: 2026-08-04T03:06:14+00:00