Home > 2012 ICD-9-CM Diagnosis Codes > Congenital Anomalies 740-759 > Other congenital anomalies of nervous system 742-
Specific code 2012 ICD-9-CM Diagnosis Code 742.9
Unspecified congenital anomaly of brain, spinal cord, and nervous system
  • Short description: Nervous system anom NOS.
  • ICD-9-CM 742.9 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 742.9 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
  • You are viewing the 2012 version of ICD-9-CM 742.9.
  • More recent version(s) of ICD-9-CM 742.9: 2013 2014 2015.
Convert to ICD-10-CM: 742.9 converts approximately to:
  • 2015/16 ICD-10-CM Q07.9 Congenital malformation of nervous system, unspecified
Approximate Synonyms
  • Brain anomaly
  • Brain anomaly, congenital
  • Central nervous system (CNS) malformation, fetal
  • CNS anomaly, fetal
  • Congenital anomaly of brain
  • Congenital anomaly of nervous system
  • Congenital anomaly of spine
  • Congenital brain anomaly
  • Congenital corpus callosum anomaly
  • Congenital malformation of corpus callosum
  • Congenital nervous system anomaly
  • Congenital spinal cord anomaly
  • Corpus callosum anomaly, congenital
  • Fetus with central nervous system malformation (disorder)
  • Nervous system anomaly
  • Nervous system anomaly, congenital
  • Neural tube defect
  • Spinal cord anomaly
  • Spinal cord anomaly, congenital
Applies To
  • Anomaly of brain, nervous system, and spinal cord
  • Congenital, of brain, nervous system, and spinal cord:
    • disease of brain, nervous system, and spinal cord
    • lesion of brain, nervous system, and spinal cord
  • Deformity of brain, nervous system, and spinal cord
ICD-9-CM Volume 2 Index entries containing back-references to 742.9:
  • Abnormal, abnormality, abnormalities - see also Anomaly
    • development, developmental NEC 759.9
      • bone 756.9
      • central nervous system 742.9
  • Anomaly, anomalous (congenital) (unspecified type) 759.9
    • acoustic nerve 742.9
    • choroid 743.9
      • plexus 742.9
    • gyri 742.9
    • nerve 742.9
      • acoustic 742.9
      • optic 742.9
      • specified type NEC 742.8
    • nervous system NEC 742.9
      • brain 742.9
      • specified type NEC 742.8
    • neurological 742.9
    • sense organs 742.9
  • Deformity 738.9
    • cerebral (congenital) 742.9
    • choroid (congenital) 743.9
      • acquired 363.8
      • plexus (congenital) 742.9
    • nervous system (congenital) 742.9
    • spinal
      • column - see Deformity, spine
      • cord (congenital) 742.9
      • nerve root (congenital) 742.9
  • Disease, diseased - see also Syndrome
    • brain 348.9
      • Alzheimer's 331.0
        • with dementia - see Alzheimer's, dementia
      • arterial, artery 437.9
      • arteriosclerotic 437.0
      • congenital 742.9
      • degenerative - see Degeneration, brain
      • inflammatory - see also Encephalitis
        • late effect - see category 326
      • organic 348.9
      • parasitic NEC 123.9
      • Pick's 331.11
      • senile 331.2
    • nervous system (central) 349.9
      • autonomic, peripheral (see also Neuropathy, peripheral, autonomic) 337.9
      • congenital 742.9
      • inflammatory - see Encephalitis
      • parasympathetic (see also Neuropathy, peripheral, autonomic) 337.9
      • peripheral NEC 355.9
      • prion NEC 046.79
      • specified NEC 349.89
      • sympathetic (see also Neuropathy, peripheral, autonomic) 337.9
      • vegetative (see also Neuropathy, peripheral, autonomic) 337.9
  • Dysplasia - see also Anomaly
    • brain 742.9
    • nervous system (general) 742.9
    • spinal cord 742.9
  • Encephalopathy (acute) 348.30
    • congenital 742.9
  • Lesion(s)
    • brain 348.89
      • congenital 742.9
      • vascular (see also Lesion, cerebrovascular) 437.9
        • degenerative 437.1
        • healed or old without residuals V12.54
        • hypertensive 437.2
        • late effect - see Late effect(s) (of) cerebrovascular disease
    • nervous system 349.9
      • congenital 742.9
    • spinal cord 336.9
      • congenital 742.9
      • traumatic (complete) (incomplete) (transverse) - see also Injury, spinal, by site
        • with
          • broken
            • back - see Fracture, vertebra, by site, with spinal cord injury
            • neck - see Fracture, vertebra, cervical, with spinal cord injury
          • fracture, vertebra - see Fracture, vertebra, by site, with spinal cord injury
  • Maldevelopment - see also Anomaly, by site
    • brain 742.9
  • Malformation (congenital) - see also Anomaly
    • nervous system (central) 742.9
    • sense organs NEC 742.9
    • spinal cord 742.9
 742.8 ICD9Data.com 743 
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