Q04.1
Arhinencephaly
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 2 never code together
Instructional notes
No further instructional notes apply.
Index entries leading here 1
- Arhinencephaly Q04.1
Alongside this code 8 same parent — Q04
Q04.0 Congenital malformations of corpus callosum Q04.2 Holoprosencephaly Q04.3 Other reduction deformities of brain Q04.4 Septo-optic dysplasia of brain Q04.5 Megalencephaly Q04.6 Congenital cerebral cysts Q04.8 Other specified congenital malformations of brain Q04.9 Congenital malformation of brain, unspecified
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.