# Addiction Psychiatry Ward P6, Psychiatry Center Keywords: - [addiction psychiatry](< /en/search?q=addiction psychiatry >) On the Addiction Psychiatry Ward, we conduct psychiatric and substance abuse assessments requiring special expertise and perform demanding differential diagnostic evaluations when you are suspected of having a serious psychiatric disorder alongside an addiction disease. In addition, we conduct assessments of the need for opioid substitution treatment, psychiatric examinations during pregnancy, and rehabilitation treatment requiring special expertise. We also conduct evaluations during pregnancy and the need for opioid substitution treatment, as well as neuropsychiatric studies and work ability assessments, when the subject has severe substance dependence. Treatment on the ward requires a referral. ## [ Maisa Portal (opens in new window, links to another website) ](https://www.maisa.fi/maisa/Authentication/Login?lang=britishenglish) MAISA.FI You can use our online services by signing in to the Maisa Portal. Once your treatment with us begins, you will receive information on the services you can access in Maisa. These include appointment booking and preliminary information forms, for example. Click here to go to Maisa’s sign-in page  ## [ Patient Guide ](/en/patient/patient-guide) The Patient Guide site answer the most common questions you might have before, during, and after treatment. See Patient Guide site here  ## Contact information and visiting hours #### Visiting address Psychiatry Center Välskärinkatu 12 Helsinki 6th floor #### Postal address P.O. Box 590 00029 HUS ### Office [ Phone, Office: 09 4716 3647 ]() ### Fax [ Phone, Fax: 09 4716 3873 ]() #### Visiting hours Mon–Fri 13:00–19:00 Sat–Sun 13:00–18:00 ## Find us here ### [ Psychiatry Center ](/en/patient/hospitals-and-other-units/psychiatry-center)  ## Unit's services ### [ Addiction psychiatry ](/en/patient/treatments-and-examinations/addiction-psychiatry) Updated: 16.01.2025 Print this page