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ICD-10-CM Code G04
Encephalitis, myelitis and encephalomyelitis

Non-Billable Code
Non-Billable means the code is not sufficient justification for admission to an acute care hospital when used a principal diagnosis. Use a child code to capture more detail.
| ICD-10 from 2011 - 2016

ICD Code G04 is a non-billable code. To code a diagnosis of this type, you must use one of the six child codes of G04 that describes the diagnosis 'encephalitis, myelitis and encephalomyelitis' in more detail.

The ICD code G04 is used to code Meningoencephalitis

Meningoencephalitis (/mɪˌnɪŋɡoʊɛnˌsɛfəˈlaɪtᵻs, -ˌnɪndʒoʊ-, -ən-, -ˌkɛ-/; from Greek: meninges- membranes; enkephalos brain; and -itis inflammation) is a medical condition that simultaneously resembles both meningitis, which is an infection or inflammation of the meninges, and encephalitis, which is an infection or inflammation of the brain.

Specialty: Neurology
MeSH Codes: D888590, D009187, D004679
ICD 9 Codes: 323.9, 323, 323
Source: Wikipedia

Coding Notes for G04 Info for medical coders on how to properly use this ICD-10 code

Code Includes Notes:
Includes notes further define, or give examples of, conditions included in the section.
Acute ascending myelitis
Code Type-1 Excludes:
Type-1 Excludes
Type-1 Excludes mean the conditions excluded are mutually exclusive and should never be coded together. Excludes 1 means "do not code here."
Encephalopathy NOS - instead, use code G93.40
Code Type-2 Excludes:
Type-2 Excludes
Type-2 Excludes means the excluded conditions are different, although they may appear similar. A patient may have both conditions, but one does not include the other. Excludes 2 means "not coded here."
Acute transverse myelitis - instead, use code G37.3-
Alcoholic encephalopathy - instead, use code G31.2
Benign myalgic encephalomyelitis - instead, use code G93.3
Multiple sclerosis - instead, use Code G35
Subacute necrotizing myelitis - instead, use code G37.4
Toxic encephalitis - instead, use Code G92
Toxic encephalopathy - instead, use Code G92

ICD-10-CM Alphabetical Index References for 'G04 - Encephalitis, myelitis and encephalomyelitis'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code G04. Click on any term below to browse the alphabetical index.

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/G04