G04.90 - Encephalitis and encephalomyelitis, unspecified
- Applicable to Encephalitis and encephalomyelitis, unspecified
- The 2025 edition of ICD10-CM G04.90 became effective on October 1, 2024.
- This is the American ICD10-CM version of G04.90 - other international versions of ICD10 G04.90 may differ.
- G04.90 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Inclusion Term
- Ventriculitis (cerebral) NOS
The following codes above G04.90 contain annotation back-references that may be applicable to G04.90:
Chapter: G00-G99 Diseases of the nervous system
Section: G00-G09 Inflammatory diseases of the central nervous system
Category: G04 Encephalitis, myelitis and encephalomyelitis
Billable/Specific Code
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Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
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