Q04.6 CONGENITAL CEREBRAL CYSTS

Code Information

  • Diagnosis Code: Q04.6
  • Short Description: Congenital cerebral cysts
  • Long Description: Congenital cerebral cysts
  • Code Version: 2025 ICD-10-CM

The code Q04.6 is VALID for claim submission

Code Classification

Synonyms

  • Absent tibia, polydactyly, arachnoid cyst syndrome
  • Arachnoid cyst
  • Arachnoid cyst
  • Bilateral congenital cataract of eyes
  • Cerebellar ataxia, intellectual disability, oculomotor apraxia, cerebellar cysts syndrome
  • Cerebral arachnoid cyst
  • Choroid plexus cyst
  • Colloid brain cyst
  • Colloid cyst of third ventricle
  • Congenital choroid plexus cyst
  • Congenital cyst of brain
  • Congenital cyst of cerebrum
  • Congenital malformation of the meninges
  • Congenital malformation of the meninges
  • Congenital porencephalic cyst
  • Congenital porencephaly
  • Congenital porencephaly
  • Congenital porencephaly
  • Congenital pseudoporencephaly
  • Multiple congenital cysts of brain
  • Multiple congenital cysts of cerebrum
  • Partial agenesis of corpus callosum
  • Partial corpus callosum agenesis, cerebellar vermis hypoplasia with posterior fossa cysts syndrome
  • Persistent Blake's pouch cyst
  • Porencephalic cyst
  • Porencephaly, cerebellar hypoplasia, internal malformations syndrome
  • Porencephaly, microcephaly, bilateral congenital cataract syndrome
  • Posterior fossa arachnoid cyst
  • Pseudoporencephaly
  • Schizencephaly
  • Single congenital cyst of brain
  • Single congenital cyst of cerebrum

References to Index of Diseases and Injuries

The code Q04.6 has the following ICD-10-CM references to the Index of Diseases and Injuries

  • Inclusion Terms:
    • Porencephaly
    • Schizencephaly
  • Type 1 Excludes Notes:
    • acquired porencephalic cyst (@G93.0*)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
Q04.6 Right Arrow 742.4 Brain anomaly NEC
This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
Q04 Other congenital malformations of brain
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
Q04.8 Other specified congenital malformations of brain
Q04.9 Congenital malformation of brain, unspecified
This page was last updated on: 10/1/2025
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