Specific code 2011 ICD-9-CM Diagnosis Code 066.42
West nile fever with other neurologic manifestation
  • Short description: West Nile neuro man NEC.
  • ICD-9-CM 066.42 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 066.42 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 066.42.
  • More recent version(s) of ICD-9-CM 066.42: 2012 2013 2014 2015.
Convert to ICD-10-CM: 066.42 converts directly to:
  • 2015/16 ICD-10-CM A92.32 West Nile virus infection with other neurologic manifestation
Approximate Synonyms
  • Disorder of nervous system due to West Nile virus
  • West nile fever w neurologic complication
  • West nile fever with other neurologic complications
  • West Nile meningitis
Use Additional
  • Use additional code to specify the neurologic manifestation
ICD-9-CM Volume 2 Index entries containing back-references to 066.42:
  • Fever 780.60
    • West
      • African 084.8
      • Nile (viral) 066.40
        • with
          • cranial nerve disorders 066.42
          • encephalitis 066.41
          • optic neuritis 066.42
          • other complications 066.49
          • other neurologic manifestations 066.42
          • polyradiculitis 066.42
  • West Nile
    • fever 066.40
      • with
        • cranial nerve disorders 066.42
        • encephalitis 066.41
        • optic neuritis 066.42
        • other complications 066.49
        • other neurologic manifestations 066.42
        • polyradiculitis 066.42
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 066.42 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.