Jacobsen Syndrome is a rare genetic disorder caused by a deletion in chromosome 11. It is characterized by intellectual disability, distinctive facial features, heart defects, and other physical abnormalities. The ICD-10 code for Jacobsen Syndrome is Q93.89, which falls under the category of "Other specified chromosome abnormalities." Unfortunately, there is no specific ICD-9 code for Jacobsen Syndrome as it has been replaced by the newer ICD-10 coding system.