InnovaRx Innova Health Strategies
Pricing Sign in

Q04.9

Congenital malformation of brain, unspecified

Billable FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 8 more specific codes sit alongside it. Worth checking whether the documentation supports one of them.
Exclusions 2 never code together
Q04code
Excludes1

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

Instructional notes 4
Q04.9code
Inclusion terms
  • Congenital anomaly NOS of brain
  • Congenital deformity NOS of brain
  • Congenital disease or lesion NOS of brain
  • Multiple anomalies NOS of brain, congenital
Index entries leading here 7
  • Anomaly, anomalous (congenital) (unspecified type) Q89.9
  • Malformation (congenital) — see also Anomaly
  • Disease, diseased — see also Syndrome
  • Distortion (s) (congenital)
  • Lesion (s) (nontraumatic)
  • Deformity Q89.9
  • Cyclencephaly Q04.9
Alongside this code 8 same parent — Q04
Q04.0 Congenital malformations of corpus callosum Q04.1 Arhinencephaly 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
Additional references
AHA Coding Clinic® Licence required

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

Risk adjustment

CMS22HCC72 CMS28HCC182 ESRD21HCC72 ESRD24HCC72 RX08HCC155

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

This code

Billable
yes
Code set
FY2026
Parent
Q04
Block
Q00-Q07
Siblings
8

Present FY2024–FY2027.