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Widespread indications for use of molecular diagnostics in various aspects of clinical medicine have driven proliferation of testing. The rapid adoption and continuous technological evolution of molecular diagnostics have often strained the development and maintenance of a functional underlying framework of coding, coverage, and reimbursement policies, thereby presenting challenges to various stakeholders including molecular professionals, payers, and patients. A multidisciplinary working group convened by the Association for Molecular Pathology Economic Affairs Committee was tasked to describe the complex landscape of molecular pathology economics and highlight opportunities for member engagement. In this manuscript, on the basis of review and synthesis of government regulations and procedures, published payer policy documents, peer-reviewed literature, and expert consensus, the Working Group navigates the ecosystem of molecular pathology economics in terms of stakeholders, coding systems and processes, coverage policy determination, and pricing mechanisms. The composition and interrelatedness of various working groups and committees are emphasized in order to highlight the functional underpinnings of the system. Molecular professionals must be conversant in the language and complex inner workings of molecular pathology economics in order to lead successful, viable laboratories and advocate effectively for policy development on their behalf. This overview is provided to be a resource to molecular professionals as they navigate the reimbursement landscape.

The OncoKids panel is an amplification-based next-generation sequencing assay designed to detect diagnostic, prognostic, and therapeutic markers across the spectrum of pediatric malignancies, including leukemias, sarcomas, brain tumors, and embryonal tumors. This panel uses low input amounts of DNA (20 ng) and RNA (20 ng) and is compatible with formalin-fixed, paraffin-embedded and frozen tissue, bone marrow, and peripheral blood. The DNA content of this panel covers the full coding regions of 44 cancer predisposition loci, tumor suppressor genes, and oncogenes; hotspots for mutations in 82 genes; and amplification events in 24 genes. The RNA content includes 1421 targeted gene fusions. We describe the validation of this panel by using a large cohort of 192 unique clinical samples that included a wide range of tumor types and alterations. Robust performance was observed for analytical sensitivity, reproducibility, and limit of detection studies. The results from this study support the use of OncoKids for routine clinical testing of a wide variety of pediatric malignancies.