Children with medical complexity typically have multiple chronic medical diagnoses or concerns. Sometimes they have a unifying diagnosis, but often they may not. Frequently children with medical complexity are dependent on technology, such as g-tubes or tracheostomies, and they may need to be hospitalized at times. They often have developmental concerns such as developmental delay, intellectual disability, or neurological issues such as seizures or difficulty walking or talking. Common diagnoses include: cerebral palsy, spina bifida, genetic syndromes, mitochondrial disease, history of prematurity, craniofacial differences such as cleft lip and palate, congenital differences ("birth defects"), muscular dystrophies, neurodegenerative diseases, hypotonia, and more.