ICD-10-CM Diagnosis Code (2025)
Official Description for B01.1
Varicella encephalitis, myelitis and encephalomyelitis
Coding Notes & Guidelines for B01.1
Postchickenpox encephalitis, myelitis and encephalomyelitis
Postchickenpox encephalitis and encephalomyelitis
Postchickenpox myelitis
Parent Code (Less Specific):
About ICD-10-CM Code B01.1 (Varicella encephalitis)
ICD-10-CM code B01.1 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 B01.1 became effective on October 1, 2024.
This page provides detailed information about B01.1 - Varicella encephalitis, myelitis and encephalomyelitis. 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 Varicella encephalitis related to myelitis and encephalomyelitis.