Established Conditions: Conditions that are deemed to have a high probability of causing developmental delay include, but are not limited to: Chromosomal abnormalities Metabolic disorders Hydrocephalus Spina Bifida Cerebral Palsy Significant auditory or visual impairment Severe attachment disorders Determination that a child has an established condition will be based on diagnosis by a qualified physician or other qualified professional (e.g. audiologist) and medical records, and will include the use of informed clinical opinion.