Q04
Header — not billableOther congenital malformations of brain
The ICD-10 code for other congenital malformations of brain is Q04.
Q04 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 9 more specific codes below.
Clinical notes
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under Q04
- Q04.0Congenital malformations of corpus callosum
- Q04.1Arhinencephaly
- Q04.2Holoprosencephaly
- Q04.3Other reduction deformities of brain
- Q04.4Septo-optic dysplasia of brain
- Q04.5Megalencephaly
- Q04.6Congenital cerebral cysts
- Q04.8Other specified congenital malformations of brain
- Q04.9Congenital malformation of brain, unspecified
Related codes in this category
- Q00Anencephaly and similar malformationsnon-billable header
- Q01Encephalocelenon-billable header
- Q02Microcephaly
- Q03Congenital hydrocephalusnon-billable header
- Q05Spina bifidanon-billable header
- Q06Other congenital malformations of spinal cordnon-billable header
- Q07Other congenital malformations of nervous systemnon-billable header
- Q04Other congenital malformations of brainnon-billable header