G04.01

Billable

Postinfectious acute disseminated encephalitis and encephalomyelitis (postinfectious ADEM)

G04.01 is the ICD-10-CM code for Postinfectious acute disseminated encephalitis and encephalomyelitis (postinfectious ADEM). It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
G00-G99
Parent
G04.0
Edition
FY2026

G00-G99 Diseases of the nervous system

Excludes1 — not coded here

  • post chickenpox encephalitis (B01.1)
  • post measles encephalitis (B05.0)
  • post measles myelitis (B05.1)

Frequently asked questions

What is ICD-10 code G04.01?
G04.01 is the ICD-10-CM code for "Postinfectious acute disseminated encephalitis and encephalomyelitis (postinfectious ADEM)". It falls under G00-G99 Diseases of the nervous system.
Is G04.01 a billable code?
Yes — G04.01 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from G04.01?
Excludes1 (not coded here): post chickenpox encephalitis (B01.1); post measles encephalitis (B05.0); post measles myelitis (B05.1).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

Look up another ICD-10 code or condition

Powered by Eleplan

Free ICD-10 lookup is just the start. Eleplan keeps the whole care plan in one place.

Diagnoses, medications, documents, appointments, and the whole care team — organized and always in sync, with Ellie, your AI care assistant, on top of it. Free to start.