Hyperphosphatasia-Intellectual Disability Syndrome, also known as hyperphosphatasia with mental retardation, is related to hyperphosphatasia with impaired intellectual development syndrome 1 and hyperphosphatasia with impaired intellectual development syndrome, and has symptoms including seizures An important gene associated with Hyperphosphatasia-Intellectual Disability Syndrome is PIGO (Phosphatidylinositol Glycan Anchor Biosynthesis Class O), and among its related pathways/superpathways are Metabolism of proteins and Post-translational modification: synthesis of GPI-anchored proteins. Affiliated tissues include bone and heart, and related phenotypes are seizure and global developmental delay