G96 › G96.8

G96.81 Intracranial hypotension

Not billable (header)Chapter 6

Report one of the more specific codes below.

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Codes under this one

G96.810 Intracranial hypotension, unspecified
G96.811 Intracranial hypotension, spontaneous
G96.819 Other intracranial hypotension

Instructional notes

Chapter 6

Excludes2Not included here: the patient may have both; report both when both are present.

certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
injury, poisoning and certain other consequences of external causes (S00-T88)
neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

This code

Code also

any associated diagnoses, such as:
Brachial amyotrophy (G54.5)
Cerebrospinal fluid leak from spine (G96.02)
Cranial nerve disorders in diseases classified elsewhere (G53)
Nerve root and compressions in diseases classified elsewhere (G55)
Nonpyogenic thrombosis of intracranial venous system (I67.6)
Nontraumatic intracerebral hemorrhage (I61.-)
Nontraumatic subdural hemorrhage (I62.0-)
Other and unspecified cord compression (G95.2-)
Other secondary parkinsonism (G21.8)
Reversible cerebrovascular vasoconstriction syndrome (I67.841)
Spinal cord herniation (G95.89)
Stroke (I63.-)
Syringomyelia (G95.0)

Chapter 6: Diseases of the nervous system · G89-G99 Other disorders of the nervous system (G89-G99)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.