B01.12 – Varicella myelitis
ICD-10-CM 2027 diagnosis code · Viral infections characterized by skin and mucous membrane lesions
ICD-10-CM code
B01.12
- Code
B01.12(claims format:B0112)- Description
- Varicella myelitis
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 1. Certain infectious and parasitic diseases (A00-B99)
- Block
- B00-B09 Viral infections characterized by skin and mucous membrane lesions
- Parent codes
- B01 › B01.1
Notes for B01.12
Applicable to:
- Postchickenpox myelitis
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
B01.1 – Varicella encephalitis, myelitis and encephalomyelitis
Applicable to:
- Postchickenpox encephalitis, myelitis and encephalomyelitis
Index terms for B01.12
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in B01.1
Frequently asked questions
What is ICD-10 code B01.12?
B01.12 is the ICD-10-CM code for varicella myelitis, in the block B00-B09 (Viral infections characterized by skin and mucous membrane lesions).
Is B01.12 a billable code?
Yes. B01.12 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does B01.12 belong to?
It belongs to category B01 – Varicella [chickenpox].
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.