Other hydrocephalus

This code represents forms of hydrocephalus that do not fit into congenital, normal pressure, or obstructive categories. It signifies an abnormal accumulation of cerebrospinal fluid (CSF) within the brain's ventricles, leading to increased intracranial pressure and potential neurological dysfunction. This can be due to various underlying causes, including impaired CSF absorption or overproduction, without a clear obstruction.

Use this code when documentation specifies hydrocephalus that is not congenital, normal pressure, or clearly obstructive. This often applies to cases where the etiology is less defined or multifactorial, such as post-infectious, post-hemorrhagic (without clear obstruction), or idiopathic forms not meeting normal pressure criteria. Supporting documentation should clearly rule out more specific types of hydrocephalus.

• Always review documentation for specific types of hydrocephalus (e.g., congenital, normal pressure, obstructive) before assigning this code.
• If the cause of hydrocephalus is known and classifiable, code that specific type first.
• Avoid using this code if a more precise ICD-10-CM code for hydrocephalus is available and supported by the clinical record.