Specific code 2012 ICD-9-CM Diagnosis Code 348.30
Encephalopathy, unspecified
  • Short description: Encephalopathy NOS.
  • ICD-9-CM 348.30 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 348.30 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2012 version of ICD-9-CM 348.30.
  • More recent version(s) of ICD-9-CM 348.30: 2013 2014.
Disease Synonyms
  • Disorder of brain
  • Encephalopathy
  • Encephalopathy associated with AIDS
  • Human immunodefiency virus encephalopathy
  • Hypoglycemic encephalopathy
  • Photomyoclonus, diabetes mellitus, deafness, nephropathy and cerebral dysfunction
  • Sepsis-associated encephalopathy
Convert to ICD-10-CM: 348.30 converts directly to:
  • 2014 ICD-10-CM G93.40 Encephalopathy, unspecified
ICD-9-CM Volume 2 Index entries containing back-references to 348.30:
  • Dysfunction
    • cerebral 348.30
  • Dysrhythmia
    • cerebral or cortical 348.30
  • Encephalopathy (acute) 348.30
    • anoxic - see Damage, brain, anoxic
    • arteriosclerotic 437.0
      • late effect - see Late effect(s) (of) cerebrovascular disease
    • bilirubin, newborn 774.7
      • due to isoimmunization 773.4
    • demyelinating (callosal) 341.8
    • due to
      • birth injury (intracranial) 767.8
      • dialysis 294.8
      • drugs - (see also Table of Drugs and Chemicals) 349.82
      • hyperinsulinism - see Hyperinsulinism
      • influenza (virus) (see also Influenza) 487.8
      • lack of vitamin (see also Deficiency, vitamin) 269.2
      • nicotinic acid deficiency 291.2
      • serum (nontherapeutic) (therapeutic) 999.59
      • syphilis 094.81
      • trauma (postconcussional) 310.2
        • current (see also Concussion, brain) 850.9
          • with skull fracture - see Fracture, skull, by site, with intracranial injury
      • vaccination 323.51
    • hyperbilirubinemic, newborn 774.7
    • infantile cystic necrotizing (congenital) 341.8
    • other specified type NEC 348.39
    • spongioform, subacute (viral) 046.19
    • subcortical progressive (Schilder) 341.1
    • traumatic (postconcussional) 310.2
      • current (see also Concussion, brain) 850.9
        • with skull fracture - see Fracture, skull, by site, with intracranial injury
    • vitamin B deficiency NEC 266.9
    • Wernicke's (superior hemorrhagic polioencephalitis) 265.1
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 348.30 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 2012 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.