G93.4 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Other and unspecified encephalopathy.
Type 2 excludes
Codes
G93.40
Encephalopathy, unspecified
G93.41
Metabolic encephalopathy
G93.42
Megalencephalic leukoencephalopathy with subcortical cysts
G93.43
Leukoencephalopathy with calcifications and cysts
G93.44
Adult-onset leukodystrophy with axonal spheroids
G93.45
Developmental and epileptic encephalopathy
G93.49
Other encephalopathy
Versions
2025
No changes
2024
Code changed
Type 1 excludes
alcoholic encephalopathy (G31.2)encephalopathy in diseases classified elsewhere (G94)hypertensive encephalopathy (I67.4)
Type 2 excludes
toxic (metabolic) encephalopathy (G92.8)
- alcoholic encephalopathy (G31.2)
- encephalopathy in diseases classified elsewhere (G94)
- hypertensive encephalopathy (I67.4)
- toxic (metabolic) encephalopathy (G92.8)
2023
No changes
2022
Code changed
Type 2 excludes
toxic (metabolic) encephalopathy (G92)
- toxic (metabolic) encephalopathy (G92.8)
2021
Code changed
Type 1 excludes
alcoholic encephalopathy (G31.2)encephalopathy in diseases classified elsewhere (G94)hypertensive encephalopathy (I67.4)toxic (metabolic) encephalopathy (G92)
- alcoholic encephalopathy (G31.2)
- encephalopathy in diseases classified elsewhere (G94)
- hypertensive encephalopathy (I67.4)
Type 2 excludes
- toxic (metabolic) encephalopathy (G92)
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code