Optic nerve hypoplasia, unspecified eye

This code signifies a congenital underdevelopment or incomplete formation of the optic nerve, affecting the transmission of visual information from the eye to the brain. This condition can lead to varying degrees of vision impairment, from mild to severe, and may be associated with other neurological or endocrine abnormalities. The "unspecified eye" designation indicates that the laterality of the condition is not documented.

Use this code when the medical record clearly states a diagnosis of optic nerve hypoplasia, but does not specify whether it affects the right, left, or both eyes. Documentation supporting its use would include ophthalmological examination findings, imaging reports (e.g., MRI), and clinical notes confirming the diagnosis without laterality.

• Do not use this code if the medical record specifies laterality (e.g., right eye, left eye, bilateral); instead, select the more specific code.
• Always review the entire medical record for any mention of laterality before defaulting to the unspecified code.
• Consider co-occurring conditions, such as nystagmus or strabismus, and code them separately if documented.