I would like to know what code others are using for ADD? My office has been using F90.9 (attention-deficit hyperactivity disorder, unsp type) or F90.0 (attention-deficit hyperactivity disorder, prominently inactive type). Now we are getting rid of almost all unsp codes to prepare for October when ins stops paying those claims and I am just now realizing that all the F90- codes are actually ADHD not ADD at all. So I look up in the index, attention deficit disorder or syndrome and it says F98.8. Go to F98.8 in my book and its "other specified behavioral and emotional disorders with onset usually occurring in childhood and adolescence" with examples of thumb-sucking, nose-picking, nail-biting, excessive masturbation.