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ICD-10-CM Code A86
Unspecified viral encephalitis

BILLABLE
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
| ICD-10 from 2011 - 2016

A86 is a billable ICD code used to specify a diagnosis of unspecified viral encephalitis. A 'billable code' is detailed enough to be used to specify a medical diagnosis.


The ICD code A86 is used to code Viral encephalitis

Viral encephalitis is a type of encephalitis caused by a virus.

MeSH Codes: D018792, D018792, D018792
ICD 9 Codes: 62, 63, 64
Source: Wikipedia

Coding Notes for A86 Info for medical coders on how to properly use this ICD-10 code

Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
Viral encephalomyelitis NOS
Viral meningoencephalitis NOS

MS-DRG Mapping

  • DRG Group #097-099 - Non-bacterial infect of nervous system except viral meningitis with MCC.
  • DRG Group #097-099 - Non-bacterial infect of nervous system except viral meningitis with CC.
  • DRG Group #097-099 - Non-bacterial infect of nervous system except viral meningitis without CC or MCC.
  • DRG Group #974-976 - Hiv with major related condition with MCC.
  • DRG Group #974-976 - Hiv with major related condition with CC.
  • DRG Group #974-976 - Hiv with major related condition without CC or MCC.

Related Concepts SNOMET-CT

  • Viral ventriculitis, brain (disorder)
  • Chronic echovirus meningoencephalitis (disorder)

Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)

Unspecified non-arthropod-borne viral diseases of central nervous system (approximate match)

This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code A86 and a single ICD9 code, 049.9 is an approximate match for comparison and conversion purposes.


** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/A86