CPT 0742T: Absolute Quantitation of Myocardial Blood Flow (SPECT Add-on)
CPT code 0742T designates absolute quantitation of myocardial blood flow (AQMBF) performed as an add-on to a primary SPECT myocardial perfusion imaging study, typically acquired under pharmacologic or exercise-induced stress and optionally at rest. This measurement provides quantitative blood flow metrics that can enhance diagnostic precision for ischemia and coronary flow abnormalities beyond standard qualitative perfusion images. Nationally, adoption of quantitative myocardial blood flow measures is growing as imaging centers and payers evaluate clinical utility and coding clarity for advanced nuclear cardiology techniques.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication outlines coverage and billing considerations seen across major commercial payers and federal programs, highlighting areas where policy language, bundling guidance, and documentation expectations matter for correct use of an add-on code.
Readers will learn the clinical context for using CPT code 0742T, typical sites of service, and the role of AQMBF in complementing SPECT perfusion studies. The report provides benchmarks and policy-relevant observations about payer coverage patterns, documentation points that support medical necessity, and how this add-on service fits within cardiac imaging service lines. Data limitations are noted where input details were not provided.
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Billing Code Overview
CPT code 0742T is an add-on imaging code used when a provider performs absolute quantitation of myocardial blood flow (AQMBF) as part of a primary SPECT myocardial perfusion imaging study. The service is performed under stress conditions and may also be performed at rest when clinically indicated.
Service Type: Cardiac nuclear imaging — quantitative myocardial blood flow measurement (add-on to primary SPECT perfusion study)
Typical Site of Service: Outpatient imaging center or hospital outpatient department, where SPECT myocardial perfusion studies are performed using nuclear medicine facilities and personnel.
Data not available in the input.