• There are three types of Attention Deficit Hyperactivity Disorder (ADHD):

1. 314.00 (F90.0) Attention-Deficit/Hyperactivity Disorder – Predominately Inattentive Presentation 
2. 314.01 (F90.1) Attention-Deficit/Hyperactivity Disorder – Predominately Hyperactive/Impulsive Presentation
3. 314.01 (F90.2) Attention-Deficit/Hyperactivity Disorder – Combined Presentation  

ADHD Assessments for Children Age 6-18:

These assessments typically include observations of the child, a review of any existing medical and/or school records, child interview, interviews with parents and teachers, as well as psychological testing.  The psychological testing typically takes one session or two sessions, depending on the child's age. The entire assessment is usually completed in less than two weeks, depending on how quickly information from the school and teachers is obtained. 

ADHD Assessments for Adults:

These assessments are, on average, three hours of psychological testing and interviewing. This is usually done in one two-hour session and one shorter remote session. The assessment may also include a review of any existing medical and/or school records and interviews with parents or significant other.