RxDB
ICD-10-CM Codes Browse (Tabular) Diagnostic External Drug Neoplasm

G04 – Encephalitis, myelitis and encephalomyelitis

Overview

Coding Notes

Active
Non-billable / Non-specific, not valid for HIPAA-covered transactions

Type 1 Excludes

encephalopathy NOS (G93.40)

Tyoe 2 Excludes

acute transverse myelitis (G37.3-)
alcoholic encephalopathy (G31.2)
benign myalgic encephalomyelitis (G93.3)
multiple sclerosis (G35)
subacute necrotizing myelitis (G37.4)
toxic encephalitis (G92.8)
toxic encephalopathy (G92.8)

Includes

acute ascending myelitis
meningoencephalitis
meningomyelitis

Child Codes

Acute disseminated encephalitis and encephalomyelitis (ADEM)
Tropical spastic paraplegia
Bacterial meningoencephalitis and meningomyelitis, not elsewhere classified
Acute necrotizing hemorrhagic encephalopathy
Other encephalitis, myelitis and encephalomyelitis
Encephalitis, myelitis and encephalomyelitis, unspecified

Sibling Codes

Bacterial meningitis, not elsewhere classified
Meningitis in bacterial diseases classified elsewhere
Meningitis in other infectious and parasitic diseases classified elsewhere
Meningitis due to other and unspecified causes
Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere
Intracranial and intraspinal abscess and granuloma
Intracranial and intraspinal abscess and granuloma in diseases classified elsewhere
Intracranial and intraspinal phlebitis and thrombophlebitis
Sequelae of inflammatory diseases of central nervous system

View in Tabular

Code Title
G00-G99 Diseases of the nervous system (G00-G99)
G00-G09 Inflammatory diseases of the central nervous system (G00-G09)
G04 Encephalitis, myelitis and encephalomyelitis
Type 1 Excludes
encephalopathy NOS (G93.40)

Type 2 Excludes
acute transverse myelitis (G37.3-)
alcoholic encephalopathy (G31.2)
benign myalgic encephalomyelitis (G93.3)
multiple sclerosis (G35)
subacute necrotizing myelitis (G37.4)
toxic encephalitis (G92.8)
toxic encephalopathy (G92.8)

Includes
acute ascending myelitis
meningoencephalitis
meningomyelitis

G04.0 Acute disseminated encephalitis and encephalomyelitis (ADEM)
G04.00 Acute disseminated encephalitis and encephalomyelitis, unspecified
G04.01 Postinfectious acute disseminated encephalitis and encephalomyelitis (postinfectious ADEM)
G04.02 Postimmunization acute disseminated encephalitis, myelitis and encephalomyelitis
G04.1 Tropical spastic paraplegia
G04.2 Bacterial meningoencephalitis and meningomyelitis, not elsewhere classified
G04.3 Acute necrotizing hemorrhagic encephalopathy
G04.30 Acute necrotizing hemorrhagic encephalopathy, unspecified
G04.31 Postinfectious acute necrotizing hemorrhagic encephalopathy
G04.32 Postimmunization acute necrotizing hemorrhagic encephalopathy
G04.39 Other acute necrotizing hemorrhagic encephalopathy
G04.8 Other encephalitis, myelitis and encephalomyelitis
G04.81 Other encephalitis and encephalomyelitis
G04.82 Acute flaccid myelitis
G04.89 Other myelitis
G04.9 Encephalitis, myelitis and encephalomyelitis, unspecified
G04.90 Encephalitis and encephalomyelitis, unspecified
G04.91 Myelitis, unspecified