G31 - Other degenerative diseases of nervous system, not elsewhere classified
Use Additional Code:
-code to identify:
-dementia with behavioral disturbance F02.81)
-dementia without behavioral disturbance F02.80)
Excludes 2:
-Reye's syndrome G93.7)
G31.0 - Frontotemporal dementia
G31.01 - Pick's disease
G31.09 - Other frontotemporal dementia
G31.1 - Senile degeneration of brain, not elsewhere classified
G31.2 - Degeneration of nervous system due to alcohol
G31.8 - Other specified degenerative diseases of nervous system
G31.81 - Alpers disease
G31.82 - Leigh's disease
G31.83 - Dementia with Lewy bodies
G31.84 - Mild cognitive impairment, so stated
G31.85 - Corticobasal degeneration
G31.89 - Other specified degenerative diseases of nervous system
G31.9 - Degenerative disease of nervous system, unspecified