Septo-optic dysplasia of brain

This code identifies septo-optic dysplasia (SOD), also known as de Morsier syndrome, a rare congenital malformation characterized by the hypoplasia of the optic nerves, pituitary gland dysfunction, and midline brain defects, particularly absence of the septum pellucidum. It results from abnormal development of the forebrain during gestation, leading to a spectrum of neurological, endocrine, and visual impairments.

Use this code for patients diagnosed with septo-optic dysplasia based on clinical findings and neuroimaging studies (e.g., MRI demonstrating optic nerve hypoplasia, absent septum pellucidum, or pituitary abnormalities). Documentation should clearly state the diagnosis of SOD or de Morsier syndrome.

• Always code any associated endocrine disorders (e.g., panhypopituitarism, growth hormone deficiency) separately.
• Specify any visual impairments (e.g., optic atrophy, blindness) with additional codes.
• Do not confuse with isolated optic nerve hypoplasia without other features of SOD.