Q04.8

Other specified congenital malformations of brain

Billable FY2026 2025-10-01 → 2026-09-30

Exclusions 2 never code together

Q04code

Excludes1

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Instructional notes 2

Inclusion terms

Index entries leading here 13

Anomaly, anomalous (congenital) (unspecified type) Q89.9
- meninges Q07.9
  - cerebral Q04.8
Arnold-Chiari disease, obstruction or syndrome (type II) Q07.00
- type IV Q04.8
Ectopic, ectopia (congenital)
- brain Q04.8
- cerebral Q04.8
Malformation (congenital) — see also Anomaly
- brain (multiple) Q04.9
  - specified type NEC Q04.8
- meninges or membrane (congenital) Q07.9
  - cerebral Q04.8
Softening
- brain (necrotic) (progressive) G93.89
  - congenital Q04.8
Displacement, displaced
- brain stem, caudal (congenital) Q04.8
- cerebellum, caudal (congenital) Q04.8
Malposition
- congenital
  - brain tissue Q04.8
Deformity Q89.9
- meninges or membrane (congenital) Q07.9
  - cerebral Q04.8
Dilatation
- ventricular, ventricle (acute) (chronic) — see also Hypertrophy, cardiac
  - cerebral, congenital Q04.8
Heterotopia, heterotopic — see also Malposition, congenital
- cerebralis Q04.8
Distortion (s) (congenital)
- gyri Q04.8
Macrogyria (congenital) Q04.8
Ulegyria Q04.8

Alongside this code 8 same parent — Q04

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

CMS22HCC72 CMS28HCC182 ESRD21HCC72 ESRD24HCC72 RX08HCC155

Presence is a property of the code. Untick a model to hide it everywhere.

Present FY2024–FY2027.