G04
Non-billableEncephalitis, myelitis and encephalomyelitis
Encephalitis, myelitis and encephalomyelitis
This is a header/category code. For billing purposes, use a more specific child code from the list below.
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)
- encephalopathy NOS (G93.40)
Excludes 2
Conditions not included here, but the patient may have both
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- acute transverse myelitis (G37.3)
- alcoholic encephalopathy (G31.2)
- multiple sclerosis (G35)
- myalgic encephalomyelitis (G93.32)
- subacute necrotizing myelitis (G37.4)
- toxic encephalitis (G92.8)
- toxic encephalopathy (G92.8)
Child Codes (6)
G04.0Acute disseminated encephalitis and encephalomyelitis (ADEM)
G04.1Tropical spastic paraplegia
G04.2Bacterial meningoencephalitis and meningomyelitis, NEC
G04.3Acute necrotizing hemorrhagic encephalopathy
G04.8Other encephalitis, myelitis and encephalomyelitis
G04.9Encephalitis, myelitis and encephalomyelitis, unspecified
Also Known As / Clinical Terms
UMLS
- Acute ascending myelitisC0270626
- Acute ascending myelitis (disorder)C0270626
- acute ascending myelitisC0270626
- CerebromeningitidesC0025309
- CerebromeningitisC0025309
- EncephalomeningitidesC0025309
- EncephalomeningitisC0025309
- MENINGOENCEPHC0025309
- MeningoencephalitidesC0025309
- MeningoencephalitisC0025309
- Meningoencephalitis (disorder)C0025309
- encephalomeningitisC0025309
- meningoencephalitisC0025309
- Encephalitis, myelitis and encephalomyelitisC0014058
- Encephalitis, myelitis and encephalomyelitis (disorder)C0014058
- Encephalitis, myelitis and encephalomyelitis, unspecifiedC0014058
- MeningomyelitisC0025311
- Meningomyelitis (disorder)C0025311
- meningomyelitisC0025311
Frequently Asked Questions
What is ICD-10 code G04?
ICD-10-CM code G04 represents "Encephalitis, myelitis and encephalomyelitis". It is a non-billable header code — use a more specific child code for billing purposes.
Is G04 a billable code?
No, G04 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 6 child codes under G04.
What chapter is G04 in?
G04 is in Chapter 6: Diseases of the Nervous System (codes G00-G99).
What codes cannot be used with G04?
G04 has Excludes1 notes indicating codes that cannot be used together with it, including: encephalopathy NOS (G93.40).
What are the subcategories under G04?
G04 has 6 child codes, including: G04.0 (Acute disseminated encephalitis and encephalomyelitis (ADEM)), G04.1 (Tropical spastic paraplegia), G04.2 (Bacterial meningoencephalitis and meningomyelitis, NEC), G04.3 (Acute necrotizing hemorrhagic encephalopathy), and 2 more.
What are the UMLS CUIs for G04?
G04 is linked to 4 UMLS Concept Unique Identifiers: C0270626, C0025309, C0014058, C0025311. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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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.