ICD-10-CM Diagnosis Code (2025)
Official Description for G04.01
Postinfectious acute disseminated encephalitis and encephalomyelitis (postinfectious ADEM)
Coding Notes & Guidelines for G04.01
- post chickenpox encephalitis (B01.1)
- post measles encephalitis (B05.0)
- post measles myelitis (B05.1)
Parent Code (Less Specific):
About ICD-10-CM Code G04.01 (Postinfectious acute disseminated encephalitis and encephalomyelitis)
ICD-10-CM code G04.01 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM G04.01 became effective on October 1, 2024.
This page provides detailed information about G04.01 - Postinfectious acute disseminated encephalitis and encephalomyelitis (postinfectious ADEM). It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Postinfectious acute disseminated encephalitis and encephalomyelitis.