ICD-10-CM > G00-G99 > G89-G99 > G96 > G96.8 G96.8 Other specified disorders of central nervous system Non-Billable/Non-Specific Codes G96.81Intracranial hypotensionG96.810Intracranial hypotension, unspecifiedG96.811Intracranial hypotension, spontaneousG96.819Other intracranial hypotensionG96.89Other specified disorders of central nervous system