Insurance coverage for drug testing in the USA varies depending on the type of insurance plan, the purpose of the drug test, and the specific circumstances surrounding the test. Generally, health insurance plans may cover drug testing if it is deemed medically necessary. For example, if a physician orders a drug test to diagnose or monitor a condition, manage a patient's treatment plan, or ensure adherence to a prescribed medication regimen, the costs may be covered by the insurance provider. In such cases, the drug test is considered part of the patient's overall medical care, and the insurance company may pay for it, either fully or partially, depending on the plan’s terms and conditions. However, insurance coverage is less likely when drug testing is performed for non-medical reasons. Employment-related drug testing, such as pre-employment screenings, random workplace tests, or tests conducted after workplace accidents, is typically not covered by health insurance. Employers usually bear the cost of these tests, considering them part of their human resources and workplace safety expenses. Similarly, drug tests required for legal purposes, such as those mandated by court orders, probation requirements, or child custody cases, are generally not covered by health insurance. Individuals subject to such testing may need to pay out-of-pocket or have the costs covered by the requesting legal entity.