If someone must receive treatment for drug addiction and dependence and is lucky enough to be covered under health insurance, the vast majority drug rehab programs in Washington accept health insurance and will liaise with potential clients to find out which rehab services are covered. The majority of private health insurance entities cover outpatient and residential alcohol and drug rehab, but the time in rehab which is considered covered can fluctuate. Private health insurance will typically cover the first month of drug and alcohol treatment, but there are persons whose coverage is more extensive and may cover a more significant residence in a drug rehab program. It is best to seek advice of their insurance company as soon as possible and to ask for any help as needed from their treatment program to establish which services may be approved by their private health insurance.