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A81.9 - Atypical virus infection of central nervous system, unspecified


The ICD 10 Code for Atypical virus infection of central nervous system, unspecified is listed as A81.9.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: A81.9
Description: Atypical virus infection of central nervous system, unspecified
  • Prion diseases of the central nervous system NOS
Diagnostic Related Groups
(MS-DRG v30.0)
056 - Degenerative Nervous System Disorders W Mcc
057 - Degenerative Nervous System Disorders W/o Mcc
974 - Hiv W Major Related Condition W Mcc
975 - Hiv W Major Related Condition W Cc
976 - Hiv W Major Related Condition W/o Cc/mcc
Chapter Certain infectious and parasitic diseases (A00-B99)
Block Viral and prion infections of the central nervous system (A80-A89)
Parent A81 - Atypical virus infections of central nervous system
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 046.9 - Unspecified slow virus infection of central nervous system
ICD-10-CM Siblings (same level / similar specificity) of A81.9:
A81.0 - Creutzfeldt-Jakob disease
A81.1 - Subacute sclerosing panencephalitis
A81.2 - Progressive multifocal leukoencephalopathy
A81.8 - Other atypical virus infections of central nervous system