ICD-10-CM · Chapter 6 · G00-G99
G94 Other disorders of brain in diseases classified elsewhere
Excludes 1 (cannot be coded together)
- encephalopathy in congenital syphilis (A50.49)
- encephalopathy in influenza (J09.X9, J10.81, J11.81)
- encephalopathy in syphilis (A52.19)
- hydrocephalus in diseases classified elsewhere (G91.4)
Code First
- underlying disease
This category is a complete, billable diagnosis code.
No additional specificity is required — submit G94 directly on claims and documentation without a subcode extension.
Last reviewed: September 2026