G31.1

Senile degeneration of brain, not elsewhere classified

⇄ Primary-code rule changed vs QĐ4469

Coding guidance (WHO 2019)

Excl.: Alzheimer disease (G30.-) senility NOS (R54)

Sibling codes

G31Other degenerative diseases of nervous system, not elsewhere classified G31.0Circumscribed brain atrophy G31.2Degeneration of nervous system due to alcohol G31.8Other specified degenerative diseases of nervous system G31.9Degenerative disease of nervous system, unspecified