Biomarkers. According to the United States Food and Drug Administration (FDA), a biomarker is a defined characteristic that is measured as an indicator of normal biological processes, pathogenic processes, or responses to an exposure or intervention, including therapeutic interventions. According to the National Institutes of Health, a biomarker is a biological molecule found in blood, other body fluids, or tissues that is a sign of a normal or abnormal process, or of a condition or disease, which may be used to see how well the body responds to a treatment for a disease or condition. Biomarker testing has been used in a number of clinical applications, including screening and diagnostic tests, treatment and post-treatment monitoring, prognostic tests for estimating risk or time to clinical outcomes, and to predict patient response to specific treatments.
Clinical Laboratory Improvement Amendments. The Centers for Medicare and Medicaid Services regulates all laboratory tests on human specimens through the Clinical Laboratory Improvement Amendments (CLIA) except for research. The purpose of CLIA is to ensure labs provide accurate, reliable, and timely patient test results. Clinical laboratories must be CLIA certified to receive reimbursement from Medicare or Medicaid.
Health plans issued or renewed on or after January 1, 2023, and Managed Care Organizations for Medicaid managed care plans upon initiation or renewal of a contract with the Health Care Authority, must exempt an enrollee from prior authorization requirements for coverage of biomarker testing for either of the following:
The biomarker testing must be:
The provisions do not prohibit a health plan or managed care plan from requiring a biomarker test prior to approving a drug or treatment and does not limit an enrollee's right to access individual gene tests.
For purposes of these requirements, a biomarker test is a single or multigene diagnostic test of the cancer patient's biospecimen, such as tissue, blood, or other bodily fluids, for DNA, RNA, or protein alternations, including phenotypic characteristics of malignancy, to identify an individual with a subtype of cancer, in order to guide patient treatment.