G94
Billable codeOther disorders of brain in diseases classified elsewhere
The ICD-10 code for other disorders of brain in diseases classified elsewhere is G94.
Clinical notes
Code first
This code represents a manifestation of an underlying disease. Coding convention requires the underlying (etiology) code to be sequenced first, with this code listed second.
- underlying disease
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •This code represents a manifestation. Documentation should identify the underlying condition, which must be coded first.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- G89Pain, not elsewhere classifiednon-billable header
- G90Disorders of autonomic nervous systemnon-billable header
- G91Hydrocephalusnon-billable header
- G92Toxic encephalopathynon-billable header
- G93Other disorders of brainnon-billable header
- G95Other and unspecified diseases of spinal cordnon-billable header
- G96Other disorders of central nervous systemnon-billable header
- G97Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classifiednon-billable header
- G98Other disorders of nervous system not elsewhere classifiednon-billable header
- G99Other disorders of nervous system in diseases classified elsewherenon-billable header
- G94Other disorders of brain in diseases classified elsewhere
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 3317Approximate match
Associated MS-DRGs
G94 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.