Q04.8
BillableOther 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)
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
Q04.9Congenital malformation of brain, unspecified
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(305)
SNOMED CT
- Nasal glial heterotopia5645008
- Nasal glioma5645008
- Pseudobulbar palsy7379000
- Coffin-Siris syndrome10007009
- Dandy-Walker deformity14447001
- Dandy-Walker malformation14447001
- Dandy-Walker syndrome14447001
- Macrogyria23024003
- Pachygyria23024003
- Ectopic glial tissue43427008
- Ectopic neural glial masses43427008
- Ectopic gray matter in centrum ovale54794009
- Ectopic grey matter in centrum ovale54794009
- Congenital ulegyria56531003
- Ulegyria56531003
- Agenesis of iris69278003
- Aniridia69278003
- Aplasia of iris69278003
- Congenital absence of iris69278003
- Congenital aniridia69278003
- Irideraemia69278003
- Irideremia69278003
- Ecchordosis physaliphora69664005
- Heterotopic notochordal tissue69664005
- Cerebellar haemangioblastomatosis74073002
- Cerebellar hemangioblastomatosis74073002
- Exencephaly84461004
- Congenital abnormal shape of cerebellum92904001
- Congenital misshapen cerebellum92904001
- Congenital abnormal shape of cerebrum92905000
- Congenital misshapen cerebrum92905000
- Upper motor neuron disease95647008
- Congenital pseudobulbar palsy230784003
- Hamartoma of hypothalamus237714006
- Tuber cinereum hamartoma237714006
- Abnormality of neurogenesis253128003
- Defect of telencephalic division253135006
- Classic lissencephaly253147000
- Type 1 lissencephaly253147000
- Neuronal heterotopia253150002
- Nodular heterotopia253151003
- Laminar heterotopia253152005
- Cortical dysplasia253153000
- Dysplasia of cerebral cortex253153000
- Localised cortical dysplasia253154006
- Localized cortical dysplasia253154006
- Cortical dysplasia with hemimegalencephaly253156008
- Colpocephaly253160006
- Focal cortical dysgenesis253167009
- Microdysgenesis253167009
- Aniridia, cerebellar ataxia, intellectual disability syndrome253176002
- Gillespie syndrome253176002
- Cerebellar cortical dysplasia253179009
- Olive dysplasia253181006
- Dentate dysplasia253182004
- Olivary heterotopia253183009
- Arnold-Chiari syndrome253184003
- Chiari malformation253184003
- Chiari malformation type IV253187005
- Congenital anomaly of the meninges253199003
- Congenital malformation of the meninges253199003
- Ectopic gray matter266673001
- Ectopic grey matter266673001
- Ectopic neuronal tissue266673001
- Hamartoma of brain277369003
- Aprosencephaly277922001
- Congenital sequelae of disorders363042006
- Enlargement of ventricle of brain413808003
- Ventriculomegaly413808003
- PHACE syndrome698765007
- Pascual Castroviejo syndrome type 2698765007
- Posterior fossa brain malformation, haemangioma, arterial anomaly, cardiac defect and aortic coarctation, and eye abnormality syndrome698765007
- Posterior fossa brain malformation, hemangioma, arterial anomaly, cardiac defect and aortic coarctation, and eye abnormality syndrome698765007
- Subependymal nodular heterotopia699812002
- Lindsay Burn syndrome702356009
- PPM-X syndrome702356009
- PPMX - Mental retardation with psychosis, pyramidal signs, and macroorchidism702356009
- X-linked intellectual disability-psychosis-macroorchidism syndrome702356009
- X-linked mental retardation, syndromic 13702356009
- 3C syndrome718556007
- Cranio-cerebello-cardiac dysplasia syndrome718556007
- Craniocerebellocardiac dysplasia718556007
- Ritscher Schinzel syndrome718556007
- Pettigrew syndrome719139003
- X-linked Dandy-Walker malformation with intellectual disability, basal ganglia disease and seizure syndrome719139003
- Athabascan brainstem dysgenesis syndrome720518006
- Athabaskan brainstem dysgenesis syndrome720518006
- Navajo brainstem syndrome720518006
- Central bilateral macrogyria720632004
- Cerebro-facio-thoracic dysplasia720635002
- Pascual Castroviejo syndrome type 1720635002
- CEDNIK (cerebral dysgenesis, neuropathy, ichthyosis, keratoderma) syndrome722385008
- CEDNIK syndrome722385008
- Cerebral dysgenesis, neuropathy, ichthyosis, palmoplantar keratoderma syndrome722385008
- Baraitser Brett Piesowicz syndrome722390006
- Bilateral band-like calcification with polymicrogyria722390006
- Congenital intrauterine infection-like syndrome722390006
- Microcephaly, intracranial calcification, intellectual disability syndrome722390006
- Pseudo-TORCH syndrome722390006
- Communicating hydrocephalus co-occurrent and due to congenital agenesis of arachnoid villi722992006
- Isolated focal cortical dysplasia766710005
- Diencephalic mesencephalic junction dysplasia766871009
- GS-HH - gelastic seizures with hypothalamic hamartoma766932005
- Gelastic seizures with hypothalamic hamartoma766932005
- Hypothalamic hamartoma with gelastic seizure766932005
- PVNH - periventricular nodular heterotopia816068000
- Periventricular nodular heterotopia816068000
- Focal cortical dysplasia type IIa1003429001
- Focal cortical dysplasia type IIb1003430006
- Focal cortical dysplasia type II1003461002
- Focal cortical dysplasia type Ib1003462009
- Focal cortical dysplasia type I1003463004
- Focal cortical dysplasia type Ia1003464005
- Ventriculomegaly due to developmental anomaly1010604007
- Subcortical nodular heterotopia1010663004
- FCD (focal cortical dysplasia) Blumcke type III1010740004
- Focal cortical dysplasia Blumcke type III1010740004
- FCD (focal cortical dysplasia) Blumcke type IIIa1010741000
- Focal cortical dysplasia Blumcke type IIIa1010741000
- Congenital dysplasia of fronto-parietal cortex1142191005
- Frontoparietal cortical dysplasia1142191005
- Congenital dysplasia of superior cerebellar peduncle1142197009
- Congenital superior cerebellar dysplasia1142197009
- Brain stem asymmetry, superior cerebellar and basal ganglia dysplasia syndrome1187215002
- Tubulinopathy-associated dysgyria1187215002
- Cerebral ventriculomegaly, cystic kidney disease1216942009
- Congenital nephrosis, cerebral ventriculomegaly syndrome1216942009
- VMCKD - ventriculomegaly with cystic kidney disease1216942009
- Aprosencephaly/atelencephaly spectrum1237365009
- Aprosencephaly cerebellar dysgenesis1237366005
- Posterior-predominant lissencephaly, broad flat pons and medulla-midline crossing defects syndrome1269233006
- Infantile haemangioma1293125002
- Infantile hemangioma1293125002
- MECP2 (methyl-cytosine phosphate guanine binding protein-2) disorder1296869000
- MECP2 related disorder1296869000
- Methyl-CpG (cytosine phosphate guanine) binding protein-2 disorder1296869000
- Methyl-CpG binding protein 2 related disorder1296869000
- Methyl-cytosine phosphate guanine binding protein-2 related disorder1296869000
- Congenital enlargement of ventricle of brain12275031000119106
- Congenital ventriculomegaly12275031000119106
- Cystic malformation of posterior fossa35111000119109
- Posterior fossa cystic anomaly35111000119109
UMLS
- Arnold-Chiari syndrome, type IVC2910100
- Broad Gyri of CerebrumC0266483
- Cerebral pachygyriaC0266483
- Fewer and broader ridges in brainC0266483
- Large Gyri of CerebrumC0266483
- MacrogyriaC0266483
- Macrogyria (disorder)C0266483
- MacrogyriasC0266483
- PachygyriaC0266483
- PachygyriasC0266483
- macrogyriaC0266483
- pachygyriaC0266483
- Other specified congenital malformations of brainC0477972
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.