Intracranial hypotension following ventricular shunting

This code signifies a condition where the pressure within the skull is abnormally low, specifically occurring as a complication after a ventricular shunt procedure. This reduced intracranial pressure can lead to symptoms such as headaches, nausea, and dizziness, often exacerbated when upright. It indicates a direct causal relationship between the shunting and the subsequent hypotension.

Use this code when documentation clearly states that a patient is experiencing intracranial hypotension as a direct consequence of a previously performed ventricular shunting procedure. This typically applies to patients presenting with symptoms of low CSF pressure following shunt placement or revision. Documentation should explicitly link the hypotension to the shunt.

• Always ensure the documentation explicitly states "following ventricular shunting" to support the causal link.
• Do not use for spontaneous intracranial hypotension or hypotension due to other causes; those have different codes.
• Sequence this code after the primary diagnosis for the condition necessitating the shunt, if still relevant, or as the primary diagnosis if the hypotension is the reason for the encounter.