G04.01
BillablePostinfect acute dissem encephalitis and encephalomyelitis
Postinfectious acute disseminated encephalitis and encephalomyelitis (postinfectious ADEM)
Coding Notes
Includes
Conditions included under this code
- acute ascending myelitis
- meningoencephalitis
- meningomyelitis
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •acute transverse myelitisG37.3
- •alcoholic encephalopathyG31.2
- •multiple sclerosisG35
- •myalgic encephalomyelitisG93.32
- •subacute necrotizing myelitisG37.4
- •toxic encephalitisG92.8
- •toxic encephalopathyG92.8
Related Codes(2)
Also Known As / Clinical Terms(46)
SNOMED CT
- ADEM - Acute disseminated encephalomyelitis83942000
- Acute disseminated encephalomyelitis83942000
- Post-infectious encephalitis192727001
- Cerebellar ataxia associated with another disorder192874000
- Bacterial ventriculitis230158001
- Bacterial ventriculitis, brain230158001
- Post-influenza encephalitis230188005
- Post-infectious encephalomyelitis230199007
- Demyelination of spinal cord308634000
- Spinal demyelination308634000
- Infective ventriculitis312217003
- Infective ventriculitis, brain312217003
- Staphylococcus epidermidis ventriculitis371031006
- Infection caused by Staphylococcus epidermidis406608004
- Post-infective myelitis426266003
- Acute cerebellar ataxia following infectious disease1366187006
- Acute postinfectious cerebellar ataxia1366187006
- Post-infectious cerebellitis1366187006
- Postinfectious cerebellitis1366187006
- Acute disseminated encephalomyelitis following infectious disease182961000119101
- Infection caused by coagulase-negative Staphylococcus120821000119107
- Ventriculitis of the brain89441000119109
UMLS
Clinical Terms
- Spinal demyelination
- Acute disseminated encephalomyelitis
- Post-infective myelitis
- Bacterial ventriculitis
- Acute disseminated encephalomyelitis following infectious disease
- Ventriculitis of the brain
- Demyelination of spinal cord
- Staphylococcus epidermidis ventriculitis
- Acute cerebellar ataxia following infectious disease
- Infective ventriculitis
- Infection caused by Staphylococcus epidermidis
- Infective ventriculitis, brain
- Infection caused by coagulase-negative Staphylococcus
- ADEM - Acute disseminated encephalomyelitis
- Post-infectious cerebellitis
- Post-influenza encephalitis
- Post-infectious encephalitis
- Cerebellar ataxia associated with another disorder
- Bacterial ventriculitis, brain
- Acute postinfectious cerebellar ataxia
- Post-infectious encephalomyelitis
- Postinfectious cerebellitis
Frequently Asked Questions
What is the ICD-10 code for postinfect acute dissem encephalitis and encephalomyelitis?
The ICD-10-CM code for postinfect acute dissem encephalitis and encephalomyelitis is G04.01. The full clinical description is "Postinfectious acute disseminated encephalitis and encephalomyelitis (postinfectious ADEM)". G04.01 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code G04.01 mean?
ICD-10-CM code G04.01 represents “Postinfectious acute disseminated encephalitis and encephalomyelitis (postinfectious ADEM)”. It is classified under Chapter 6: Diseases of the Nervous System and is a billable/specific code that can be used on a claim.
Is G04.01 a billable code?
Yes, G04.01 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is G04.01 in?
G04.01 is in Chapter 6: Diseases of the Nervous System (codes G00-G99).
What codes cannot be used with G04.01?
G04.01 has Excludes1 notes indicating codes that cannot be used together with it, including: encephalopathy NOS (G93.40); acute necrotizing hemorrhagic encephalopathy (G04.3-); other noninfectious acute disseminated encephalomyelitis (noninfectious ADEM) (G04.81); and 3 more.
What SNOMED CT codes does G04.01 map to?
G04.01 maps to 15 SNOMED CT concepts: 83942000, 1366187006, 182961000119101, 230158001, 192874000, and 10 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for G04.01?
G04.01 is linked to 1 UMLS Concept Unique Identifier: C3263956. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does G04.01 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like postinfect acute dissem encephalitis and encephalomyelitis affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of G04.01?
There is no direct ICD-11 mapping available for G04.01 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.