Home > 2011 ICD-9-CM Diagnosis Codes > Infectious And Parasitic Diseases 001-139 > Poliomyelitis And Other Non-Arthropod-Borne Viral Diseases Of Central Nervous System 045-049 > Slow virus infection and prion diseases of central nervous system 046-
Specific code 2011 ICD-9-CM Diagnosis Code 046.3
Progressive multifocal leukoencephalopathy
  • Short description: Prog multifoc leukoencep.
  • ICD-9-CM 046.3 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 046.3 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 2011 version of ICD-9-CM 046.3.
  • More recent version(s) of ICD-9-CM 046.3: 2012 2013 2014 2015.
Convert to ICD-10-CM: 046.3 converts approximately to:
  • 2015/16 ICD-10-CM A81.2 Progressive multifocal leukoencephalopathy
Applies To
  • Multifocal leukoencephalopathy NOS
ICD-9-CM Volume 2 Index entries containing back-references to 046.3:
  • Leukoencephalopathy (see also Encephalitis) 323.9
    • multifocal (progressive) 046.3
    • progressive multifocal 046.3
 046.2 ICD9Data.com 046.7 
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 046.3 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 2011 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.
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