ICD-10-CM 2027
ICD-10 code for intracranial hypotension
From the official ICD-10-CM alphabetic index entry “Hypotension (arterial) (constitutional) › intracranial”. Page updated September 29, 2026.
About coding intracranial hypotension
The ICD-10-CM code for intracranial hypotension is G96.810 (Intracranial hypotension, unspecified). The official index lists 5 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on G96.810.
Within G96.81, choose G96.810 (unspecified) only when documentation doesn't support a more specific option: spontaneous (G96.811) and other intracranial hypotension (G96.819).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 070 (Other Cerebrovascular Disorders with MCC, relative weight 1.6093), DRG 071 (Other Cerebrovascular Disorders with CC, relative weight 1.0177) and DRG 072 (Other Cerebrovascular Disorders without CC/MCC, relative weight 0.7348), in MDC 01 (Diseases and Disorders of the Nervous System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific intracranial hypotension codes (official index)
- following
- lumbar cerebrospinal fluid shunting G97.83 — Intracranial hypotension following lumbar cerebrospinal fluid shunting
- specified procedure NEC G97.84 — Intracranial hypotension following other procedure
- ventricular shunting (ventriculostomy) G97.2 — Intracranial hypotension following ventricular shunting
- specified NEC G96.819 — Other intracranial hypotension
- spontaneous G96.811 — Intracranial hypotension, spontaneous
Common questions about intracranial hypotension ICD-10 codes
What is the ICD-10 code for intracranial hypotension?
- G96.810 — Intracranial hypotension, unspecified. More specific codes apply when the documentation supports them: G97.83, G97.84, G97.2, G96.819 and others below.
What is the ICD-10 code for spontaneous intracranial hypotension?
- G96.811 — Intracranial hypotension, spontaneous.
Is G96.810 billable?
- Yes. G96.810 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can G96.810 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict G96.810 as a principal diagnosis.
Is G96.810 a CC or MCC?
- No. G96.810 is neither a CC nor an MCC under MS-DRG v44.0.