Q04.1 Arhinencephaly

Instructional Notes:

Q04.1
Description: Arhinencephaly
↓
Q04
Description: Other congenital malformations of brain
Exclude1:
- cyclopia (Q87.0)
- macrocephaly (Q75.3)
↓
Q00-Q07
Description: Congenital malformations of the nervous system (Q00-Q07)
↓
Q00-Q99
Description: Congenital malformations, deformations and chromosomal abnormalities
Exclude2:
- inborn errors of metabolism (E70-E88)
Notes:
- Codes from this chapter are not for use on maternal records