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ICD-10-CM Codes
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G00-G99
Diseases of the nervous system
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G00-G09
Inflammatory diseases of the central nervous system
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G04-
Encephalitis, myelitis and encephalomyelitis
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2020 ICD-10-CM Diagnosis Code G04.9
2020 ICD-10-CM Diagnosis Code G04.9
Encephalitis, myelitis and encephalomyelitis, unspecified
2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
- G04.9 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
- The 2020 edition of ICD-10-CM G04.9 became effective on October 1, 2019.
- This is the American ICD-10-CM version of G04.9 - other international versions of ICD-10 G04.9 may differ.
The following code(s) above
G04.9 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
G04.9:
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
ICD-10-CM Codes Adjacent To G04.9
G04.1 Tropical spastic paraplegia
G04.2 Bacterial meningoencephalitis and meningomyelitis, not elsewhere classified
G04.3 Acute necrotizing hemorrhagic encephalopathy
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
G04.9
Encephalitis, myelitis and encephalomyelitis, unspecified
G04.90 Encephalitis and encephalomyelitis, unspecified
G05 Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere
G05.3 Encephalitis and encephalomyelitis in diseases classified elsewhere
G05.4 Myelitis in diseases classified elsewhere
G06 Intracranial and intraspinal abscess and granuloma
G06.0 Intracranial abscess and granuloma
G06.1 Intraspinal abscess and granuloma
G06.2 Extradural and subdural abscess, unspecified
G07 Intracranial and intraspinal abscess and granuloma in diseases classified elsewhere
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
