Design This is a uncontrolled intervention study where included families and children will be recruited consecutively during two years from a routine care CAMHS unit. All participants will be offered ICBT and assessed pre- and post-treatment, and at three-month follow-up through clinician ratings and self-report measures. The primary outcome measure is clinician rated severity of principal disorder at three-month follow-up. Long-term results will be assessed through study of medical records two years after completed ICBT.