F90.8 diagnosis code: Attention-deficit hyperactivity disorder, other type
The World Health Organization's ICD 10 lists F90.8 to classify presentations of attention-deficit hyperactivity disorder (ADHD) that do not clearly fall under the predominantly inattentive type (F90.0), predominantly hyperactive type (F90.1), or combined type (F90.2). It includes atypical forms or variants of ADHD that still meet the general diagnostic criteria but present differently.
