Participants will be randomly assigned to one of the two treatment groups: CST-AMI or ATT-AMI. Those assigned to CST-AMI will complete 8 weekly sessions of coping training and 2 monthly maintenance-promoting sessions. Sessions will focus on teaching biofeedback, muscle relaxation techniques, imagery, distraction, activity pacing, problem solving, and calming techniques, using a treatment manual developed and tested in youth with CDH. Those assigned to ATT-AMI will receive the same amount of therapist support and attention but not the active behavioral training. All participants will receive the study medication, AMI.