Specific code 2014 ICD-9-CM Diagnosis Code 323.61
Infectious acute disseminated encephalomyelitis (ADEM)
  • Billable Code
  • Manifestation Code
  • Short description: Inf ac dis encephalomyel.
  • ICD-9-CM 323.61 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 323.61 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Acute disseminated encephalomyelitis
  • Acute disseminated infectious encephalomyelitis (disorder)
  • Acute hemorrhagic leukoencephalitis
  • Disseminated infectious encephalomyelitis, acute
  • Encephalitis, acute disseminated
  • Infectious acute disseminated encephalomyelitis
  • Postinfectious encephalitis, acute disseminated
Applies To
  • Acute necrotizing hemorrhagic encephalopathy
ICD-9-CM Coding Information
  • 323.61 describes the manifestation of an underlying disease, not the disease itself, and therefore should not be used as a principal diagnosis.
Convert to ICD-10-CM: 323.61 converts approximately to:
  • 2014 ICD-10-CM G04.00 Acute disseminated encephalitis and encephalomyelitis, unspecified
    Or:
  • 2014 ICD-10-CM G04.01 Postinfectious acute disseminated encephalitis and encephalomyelitis (postinfectious ADEM)
    Or:
  • 2014 ICD-10-CM G04.39 Other acute necrotizing hemorrhagic encephalopathy
ICD-9-CM Volume 2 Index entries containing back-references to 323.61:
  • ADEM (acute disseminated encephalomyelitis) (postinfectious) 136.9 [323.61]
    • infectious 136.9 [323.61]
  • Encephalitis (bacterial) (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute) 323.9
    • acute - see also Encephalitis, viral
      • disseminated (postinfectious) NEC 136.9 [323.61]
        • postimmunization or postvaccination 323.51
      • inclusional 049.8
      • inclusion body 049.8
      • necrotizing 049.8
  • Encephalomyelitis (chronic) (granulomatous) (myalgic, benign) (see also Encephalitis) 323.9
    • acute disseminated (ADEM) (postinfectious) 136.9 [323.61]
  • Encephalopathy (acute) 348.30
    • necrotizing
      • hemorrhagic (acute) 323.61
      • subacute 330.8
  • Leukoencephalitis
    • acute hemorrhagic (postinfectious) NEC 136.9 [323.61]
      • postimmunization or postvaccinal 323.51
  • Leukoencephalopathy (see also Encephalitis) 323.9
    • acute necrotizing hemorrhagic (postinfectious) 136.9 [323.61]
      • postimmunization or postvaccinal 323.51
  • Meningoencephalomyelitis (see also Meningoencephalitis) 323.9
    • acute NEC 048
      • disseminated (postinfectious) 136.9 [323.61]
        • postimmunization or postvaccination 323.51
  • Myelinoclasis, perivascular, acute (postinfectious) NEC 136.9 [323.61]
    • postimmunization or postvaccinal 323.51
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 323.61 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 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.