Q04.3
Other reduction deformities of brain
- Release
- FY 2027
- Effective
Hierarchy
Where Q04.3 sits in the official hierarchy. Each level is the code it is classified under.
- Q04 Parent Other congenital malformations of brain
- Q04.3 This code Other reduction deformities of brain
Official Coding Notes
Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.
Inclusion Terms
Absence of part of brain
Inclusion Terms
Agenesis of part of brain
Inclusion Terms
Agyria
Inclusion Terms
Aplasia of part of brain
Inclusion Terms
Hydranencephaly
Inclusion Terms
Hypoplasia of part of brain
Inclusion Terms
Lissencephaly
Inclusion Terms
Microgyria
Inclusion Terms
Pachygyria
Version History
How Q04.3 appears in each release imported from the official files, newest first.
-
FY 2027 Effective
CurrentOther reduction deformities of brain
-
FY 2026 Effective
UnchangedOther reduction deformities of brain
Related Codes
Other codes under Q04
- Q04.0 Congenital malformations of corpus callosum Billable
- Q04.1 Arhinencephaly Billable
- Q04.2 Holoprosencephaly Billable
- Q04.4 Septo-optic dysplasia of brain Billable
- Q04.5 Megalencephaly Billable
- Q04.6 Congenital cerebral cysts Billable
- Q04.8 Other specified congenital malformations of brain Billable
- Q04.9 Congenital malformation of brain, unspecified Billable
Data Source
Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.
- Release
- FY 2027
- Effective
- Source file
- icd10cm-code-descriptions-2027.zip
Official ICD-10-CM source files (opens in a new tab)
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