G04.01 - Postinfectious acute disseminated encephalitis and encephalomyelitis (postinfectious ADEM)
- Applicable to Postinfectious acute disseminated encephalitis and encephalomyelitis (postinfectious ADEM)
- The 2025 edition of ICD10-CM G04.01 became effective on October 1, 2024.
- This is the American ICD10-CM version of G04.01 - other international versions of ICD10 G04.01 may differ.
- G04.01 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Type 1 Excludes
- post chickenpox encephalitis (B01.1)
- post measles encephalitis (B05.0)
- post measles myelitis (B05.1)
The following codes above G04.01 contain annotation back-references that may be applicable to G04.01:
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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