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Q04.8

Billable

Other specified congenital malformations of brain

Other specified congenital malformations of brain

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

  • Arnold-Chiari syndrome, type IV
  • Macrogyria

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

Excludes 2

Conditions not included here, but the patient may have both

Related Codes(8)
ICD-11 Equivalents(1)

ICD-11 Equivalents

View full mapping

Corresponding ICD-11 codes from the WHO crosswalk mapping

Also Known As / Clinical Terms(305)

SNOMED CT

Clinical Terms

  • Posterior fossa brain malformation, haemangioma, arterial anomaly, cardiac defect and aortic coarctation, and eye abnormality syndrome
  • Congenital ventriculomegaly
  • MECP2 related disorder
  • FCD (focal cortical dysplasia) Blumcke type III
  • CEDNIK (cerebral dysgenesis, neuropathy, ichthyosis, keratoderma) syndrome
  • Methyl-CpG (cytosine phosphate guanine) binding protein-2 disorder
  • Ectopic neural glial masses
  • Cortical dysplasia
  • Baraitser Brett Piesowicz syndrome
  • Colpocephaly
  • Defect of telencephalic division
  • Craniocerebellocardiac dysplasia
  • Nodular heterotopia
  • Large Gyri of Cerebrum
  • Exencephaly
  • GS-HH - gelastic seizures with hypothalamic hamartoma
  • Ectopic glial tissue
  • Focal cortical dysplasia type Ib
  • Ectopic grey matter
  • X-linked Dandy-Walker malformation with intellectual disability, basal ganglia disease and seizure syndrome
  • Congenital abnormal shape of cerebellum
  • Focal cortical dysplasia type Ia
  • Ectopic grey matter in centrum ovale
  • Methyl-CpG binding protein 2 related disorder
  • Ectopic gray matter in centrum ovale
  • Neuronal heterotopia
  • Focal cortical dysplasia Blumcke type IIIa
  • Aniridia
  • Congenital absence of iris
  • Ventriculomegaly
  • Macrogyria
  • Pseudobulbar palsy
  • Lindsay Burn syndrome
  • Congenital aniridia
  • Fewer and broader ridges in brain
  • Hypothalamic hamartoma with gelastic seizure
  • Cystic malformation of posterior fossa
  • Coffin-Siris syndrome
  • Ectopic neuronal tissue
  • Ecchordosis physaliphora
  • Aprosencephaly/atelencephaly spectrum
  • Pascual Castroviejo syndrome type 1
  • Type 1 lissencephaly
  • Nasal glioma
  • Agenesis of iris
  • MECP2 (methyl-cytosine phosphate guanine binding protein-2) disorder
  • Pascual Castroviejo syndrome type 2
  • Cerebral ventriculomegaly, cystic kidney disease
  • Classic lissencephaly
  • X-linked mental retardation, syndromic 13
  • Enlargement of ventricle of brain
  • Congenital ulegyria
  • Dysplasia of cerebral cortex
  • Focal cortical dysplasia type IIb
  • Nasal glial heterotopia
  • Microcephaly, intracranial calcification, intellectual disability syndrome
  • Aniridia, cerebellar ataxia, intellectual disability syndrome
  • VMCKD - ventriculomegaly with cystic kidney disease
  • Tuber cinereum hamartoma
  • Congenital anomaly of the meninges
  • Chiari malformation
  • Dentate dysplasia
  • Periventricular nodular heterotopia
  • Focal cortical dysplasia type II
  • Pachygyrias
  • Frontoparietal cortical dysplasia
  • Ritscher Schinzel syndrome
  • Cerebellar cortical dysplasia
  • Heterotopic notochordal tissue
  • Olive dysplasia
  • Congenital abnormal shape of cerebrum
  • Congenital misshapen cerebrum
  • Upper motor neuron disease
  • Congenital malformation of the meninges
  • Irideraemia
  • Pachygyria
  • Congenital intrauterine infection-like syndrome
  • Congenital nephrosis, cerebral ventriculomegaly syndrome
  • Congenital pseudobulbar palsy
  • Ulegyria
  • Bilateral band-like calcification with polymicrogyria
  • Focal cortical dysplasia type IIa
  • Focal cortical dysplasia Blumcke type III
  • PHACE syndrome
  • Posterior fossa brain malformation, hemangioma, arterial anomaly, cardiac defect and aortic coarctation, and eye abnormality syndrome
  • Subcortical nodular heterotopia
  • Diencephalic mesencephalic junction dysplasia
  • Athabascan brainstem dysgenesis syndrome
  • X-linked intellectual disability-psychosis-macroorchidism syndrome
  • Ventriculomegaly due to developmental anomaly
  • Pseudo-TORCH syndrome
  • Microdysgenesis
  • Broad Gyri of Cerebrum
  • Hamartoma of brain
  • FCD (focal cortical dysplasia) Blumcke type IIIa
  • Hamartoma of hypothalamus
  • Methyl-cytosine phosphate guanine binding protein-2 related disorder
  • Dandy-Walker malformation
  • Posterior-predominant lissencephaly, broad flat pons and medulla-midline crossing defects syndrome
  • Cortical dysplasia with hemimegalencephaly
  • Laminar heterotopia
  • PPM-X syndrome
  • Cerebral pachygyria
  • Focal cortical dysplasia type I
  • Localised cortical dysplasia
  • Communicating hydrocephalus co-occurrent and due to congenital agenesis of arachnoid villi
  • Dandy-Walker deformity
  • Navajo brainstem syndrome
  • Tubulinopathy-associated dysgyria
  • Congenital dysplasia of fronto-parietal cortex
  • Aplasia of iris
  • Chiari malformation type IV
  • Cerebral dysgenesis, neuropathy, ichthyosis, palmoplantar keratoderma syndrome
  • Abnormality of neurogenesis
  • Cerebellar hemangioblastomatosis
  • PVNH - periventricular nodular heterotopia
  • Macrogyrias
  • Olivary heterotopia
  • CEDNIK syndrome
  • Irideremia
  • Focal cortical dysgenesis
  • Pettigrew syndrome
  • Congenital dysplasia of superior cerebellar peduncle
  • PPMX - Mental retardation with psychosis, pyramidal signs, and macroorchidism
  • Arnold-Chiari syndrome
  • Central bilateral macrogyria
  • Ectopic gray matter
  • Arnold-Chiari syndrome, type IV
  • Gillespie syndrome
  • Cranio-cerebello-cardiac dysplasia syndrome
  • Cerebellar haemangioblastomatosis
  • Infantile hemangioma
  • Aprosencephaly cerebellar dysgenesis
  • Congenital misshapen cerebellum
  • Aprosencephaly
  • Cerebro-facio-thoracic dysplasia
  • Infantile haemangioma
  • 3C syndrome
  • Athabaskan brainstem dysgenesis syndrome
  • Posterior fossa cystic anomaly
  • Congenital sequelae of disorders
  • Macrogyria (disorder)
  • Dandy-Walker syndrome
  • Congenital enlargement of ventricle of brain
  • Localized cortical dysplasia
  • Brain stem asymmetry, superior cerebellar and basal ganglia dysplasia syndrome
  • Gelastic seizures with hypothalamic hamartoma
  • Congenital superior cerebellar dysplasia
  • Isolated focal cortical dysplasia
  • Subependymal nodular heterotopia
Frequently Asked Questions
What is the ICD-10 code for other specified congenital malformations of brain?

The ICD-10-CM code for other specified congenital malformations of brain is Q04.8. The full clinical description is "Other specified congenital malformations of brain". Q04.8 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code Q04.8 mean?

ICD-10-CM code Q04.8 represents “Other specified congenital malformations of brain”. It is classified under Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities and is a billable/specific code that can be used on a claim.

Is Q04.8 a billable code?

Yes, Q04.8 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is Q04.8 in?

Q04.8 is in Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (codes Q00-Q99).

What codes cannot be used with Q04.8?

Q04.8 has Excludes1 notes indicating codes that cannot be used together with it, including: cyclopia (Q87.0); macrocephaly (Q75.3).

What SNOMED CT codes does Q04.8 map to?

Q04.8 maps to 77 SNOMED CT concepts: 718556007, 253128003, 69278003, 253176002, 277922001, and 72 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for Q04.8?

Q04.8 is linked to 3 UMLS Concept Unique Identifiers: C2910100, C0266483, C0477972. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does Q04.8 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like other specified congenital malformations of brain affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.

What is the ICD-11 equivalent of Q04.8?

Q04.8 maps to the ICD-11 code: LA05.Z (Cerebral structural developmental anomalies, unspecified).

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.