B05.0 – Measles complicated by encephalitis

ICD-10-CM 2027 diagnosis code · Viral infections characterized by skin and mucous membrane lesions

Billable code

ICD-10-CM code B05.0

Code: B05.0 (claims format: B050)
Description: Measles complicated by encephalitis
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: B05

Notes for B05.0

Applicable to:

Postmeasles encephalitis

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

B05 – Measles

Includes:

morbilli

Excludes1 (not coded here):

subacute sclerosing panencephalitis (A81.1)

Index terms for B05.0

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in B05

B05.1 – Measles complicated by meningitisBillable
B05.2 – Measles complicated by pneumoniaBillable
B05.3 – Measles complicated by otitis mediaBillable
B05.4 – Measles with intestinal complicationsBillable
B05.8 – Measles with other complicationsHeader
B05.9 – Measles without complicationBillable

Frequently asked questions

What is ICD-10 code B05.0?

B05.0 is the ICD-10-CM code for measles complicated by encephalitis, in the block B00-B09 (Viral infections characterized by skin and mucous membrane lesions).

Is B05.0 a billable code?

Yes. B05.0 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does B05.0 belong to?

It belongs to category B05 – Measles.

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.