ICD-10-CM Codes
A00-B99
A80-A89
Other viral encephalitis, not elsewhere classified A85

Other viral encephalitis, not elsewhere classified A85-

Type 1 Excludes

Type 1 Excludes Help

A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as A85. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

encephalitis due to cytomegalovirus (
ICD-10-CM Diagnosis Code B25.8
Other cytomegaloviral diseases
Applicable To
- Cytomegaloviral encephalitis
B25.8
)
encephalitis due to herpesvirus NEC (
ICD-10-CM Diagnosis Code B10.0
Other human herpesvirus encephalitis
Type 2 Excludes
- herpes encephalitis NOS (B00.4)
- herpes simplex encephalitis (B00.4)
- human herpesvirus encephalitis (B00.4)
- simian B herpes virus encephalitis (B00.4)
B10.0-
)
encephalitis due to herpesvirus [herpes simplex] (
ICD-10-CM Diagnosis Code B00.4
Herpesviral encephalitis
Applicable To
- Herpesviral meningoencephalitis
- Simian B disease
Type 1 Excludes
- herpesviral encephalitis due to herpesvirus 6 and 7 (B10.01, B10.09)
- non-simplex herpesviral encephalitis (B10.0-)
B00.4
)
encephalitis due to measles virus (
ICD-10-CM Diagnosis Code B05.0
Measles complicated by encephalitis
Applicable To
- Postmeasles encephalitis
B05.0
)
encephalitis due to mumps virus (
ICD-10-CM Diagnosis Code B26.2
Mumps encephalitis
B26.2
)
encephalitis due to poliomyelitis virus (
ICD-10-CM Diagnosis Code A80
- A80 Acute poliomyelitis
  - A80.0 Acute paralytic poliomyelitis, vaccine-associ...
  - A80.1 Acute paralytic poliomyelitis, wild virus, im...
  - A80.2 Acute paralytic poliomyelitis, wild virus, in...
  - A80.3 Acute paralytic poliomyelitis, other and unsp...
    - A80.30 Acute paralytic poliomyelitis, unspecified
    - A80.39 Other acute paralytic poliomyelitis
  - A80.4 Acute nonparalytic poliomyelitis
  - A80.9 Acute poliomyelitis, unspecified
A80.-
)
encephalitis due to zoster (
ICD-10-CM Diagnosis Code B02.0
Zoster encephalitis
Applicable To
- Zoster meningoencephalitis
B02.0
)
lymphocytic choriomeningitis (
ICD-10-CM Diagnosis Code A87.2
Lymphocytic choriomeningitis
Applicable To
- Lymphocytic meningoencephalitis
A87.2
)
myalgic encephalomyelitis (
ICD-10-CM Diagnosis Code G93.32
Myalgic encephalomyelitis/chronic fatigue syndrome
Applicable To
- Chronic fatigue syndrome
- ME/CFS
- Myalgic encephalomyelitis
G93.32
)

Includes

Includes Help

"Includes" further defines, or give examples of, the content of the code or category.

specified viral encephalomyelitis NEC
specified viral meningoencephalitis NEC

Codes

A85 Other viral encephalitis, not elsewhere classified
- A85.0 Enteroviral encephalitis
- A85.1 Adenoviral encephalitis
- A85.2 Arthropod-borne viral encephalitis, unspecified
- A85.8 Other specified viral encephalitis

Other viral encephalitis, not elsewhere classified A85-

Other cytomegaloviral diseases

Other human herpesvirus encephalitis

Herpesviral encephalitis

Measles complicated by encephalitis

Mumps encephalitis

Zoster encephalitis

Lymphocytic choriomeningitis

Myalgic encephalomyelitis/chronic fatigue syndrome