Specific code 2010 ICD-9-CM Diagnosis Code 742.4
Other specified congenital anomalies of brain
  • Short description: Brain anomaly NEC.
  • ICD-9-CM 742.4 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 742.4 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2010 version of ICD-9-CM 742.4.
  • More recent version(s) of ICD-9-CM 742.4: 2011 2012 2013 2014.
Disease Synonyms
  • Absence of septum pellucidum
  • Aprosencephaly
  • Atrophy of corpus callosum
  • Cerebellar cortical dysplasia
  • Cerebral cortical dysgenesis
  • Cerebral cysts, congenital
  • Chiari malformation type III
  • Colloid brain cyst (disorder)
  • Colloid cyst brain
  • Colloid cyst of third ventricle
  • Colloid cyst third ventricle of brain, congenital
  • Colloid cyst, brain
  • Colloid cyst, third ventricle of brain, congenital
  • Congenital abnormal shape of cerebellum
  • Congenital adhesions of cerebral meninges
  • Congenital cerebellar cortical atrophy
  • Congenital cerebral cyst
  • Congenital choroid plexus cyst
  • Congenital malformation of corpus callosum
  • Congenital porencephaly
  • Congenital pseudoporencephaly
  • Cortical dysplasia
  • Cortical dysplasia with hemimegalencephaly
  • Cystic malformation of posterior fossa (disorder)
  • Defect of telencephalic division
  • Derodidymis
  • Dural arteriovenous malformation
  • Dyke-Davidoff syndrome
  • Ecchordosis physaliphora
  • Ectopic glial tissue
  • Ectopic gray matter in centrum ovale
  • Encephalo-ophthalmic dysplasia
  • Familial aplasia of the vermis
  • Familial megalencephaly
  • Fetal macrocephaly
  • Granular cell hypoplasia
  • Hemimegalencephaly
  • Localized cortical dysplasia
  • Macroencephaly
  • Macrogyria
  • Marinesco-Sj�gren syndrome
  • Multiple brain anomalies
  • Multiple congenital cerebral cysts
  • Muscle eye brain disease
  • Nodular heterotopia
  • Olivary heterotopia
  • Olive dysplasia
  • Partial absence of septum pellucidum
  • Porencephaly, congenital
  • Posterior fossa cystic anomaly
  • Posterior fossa cystic malformation
  • Prion disease
  • Pseudoporencephaly, congenital
  • Rhombencephalosynapsis
  • Schizencephaly
  • Single congenital cerebral cyst
  • Sporadic megalencephaly
  • Status marmoratus
  • Ulegyria
Applies To
  • Congenital cerebral cyst
  • Macroencephaly
  • Macrogyria
  • Megalencephaly
  • Multiple anomalies of brain NOS
  • Porencephaly
  • Ulegyria
Convert to ICD-10-CM: 742.4 converts approximately to:
  • 2014 ICD-10-CM Q04.5 Megalencephaly
    Or:
  • 2014 ICD-10-CM Q04.6 Congenital cerebral cysts
    Or:
  • 2014 ICD-10-CM Q04.8 Other specified congenital malformations of brain
ICD-9-CM Volume 2 Index entries containing back-references to 742.4:
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 742.4 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2010 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.