CPT code 0630U is a Proprietary Laboratory Analyses (PLA) code that reports the BluePrint® Molecular Subtyping Test by Agendia® Inc., an oncology molecular diagnostic that uses mRNA gene expression profiling by microarray to evaluate 80 genes from formalin–fixed paraffin–embedded (FFPE) breast cancer tissue and generates an index that classifies molecular subtype (for example, luminal, basal, or HER2); service type: laboratory molecular diagnostic testing using microarray-based gene expression profiling; typical site of service: outpatient or hospital-associated clinical laboratory or reference laboratory processing FFPE tumor specimens.