Louisiana Subscriber
Answer: Angelman's syndrome, a genetic disorder usually diagnosed within the first year of life, does not have a diagnosis code. The closest is 758.3 (autosomal deletion syndromes). There are many associated clinical signs and symptoms: developmental delays, speech impairment, movement disorders and unusual behavior such as hand flapping and frequent laughter. Always code signs and symptoms until confident of the diagnosis. You don't want to label patients with a disease that might make them uninsurable in the future.