G96.00 — Cerebrospinal fluid leak, unspecified
Is G96.00 billable?
Yes, but G96.00 is an unspecified code. G96.00 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, G96.00 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting G96.00 — the more specific alternatives are listed below.
G96.00 at a glance
| Code | G96.00 |
|---|---|
| Description | Cerebrospinal fluid leak, unspecified |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does G96.00 group to?
G96.00 sits in MDC 01 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 091Other Disorders of Nervous System with MCCmedical
- 092Other Disorders of Nervous System with CCmedical
- 093Other Disorders of Nervous System without CC/MCCmedical
As a secondary diagnosis, G96.00 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is G96.00 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to G96.00. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Leak, leakage › cerebrospinal fluid
Code also
Two codes may be needed to describe the condition fully. Whether G96.00 is sequenced first depends on the reason for the encounter.
- if applicable:
- head injury (S00-S09)
Excludes1 — never code together — inherited from G96.0
The conditions below can never be reported together with G96.00 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- cerebrospinal fluid leak from spinal puncture (G97.0)
Excludes2 — not included here — inherited from Chapter 6
The conditions below are not part of G96.00, but a patient may have both at the same time. When documentation supports it, G96.00 and the excluded code may both be reported.
- 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)
Code also — inherited from G96.0
Two codes may be needed to describe the condition fully. Whether G96.00 is sequenced first depends on the reason for the encounter.
- if applicable:
- intracranial hypotension (G96.81-)
How long has G96.00 existed?
G96.00 first appears in FY2021 (FY2020 is not available, so it may have appeared then).
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.