Is B08.21 a billable code?
Yes. B08.21 is a billable ICD-10-CM code and can be used on claims and superbills for dates of service from October 1, 2026 to September 30, 2027.
ICD-10-CM FY2027 diagnosis code
B08.21: Exanthema subitum [sixth disease] due to human herpesvirus 6
Billable codeValid for dates of service October 1, 2026 to September 30, 2027
B08.21 is a billable ICD-10-CM diagnosis code for exanthema subitum [sixth disease] due to human herpesvirus 6. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.
Superbill GeneratorStart a superbill with B08.21 already added.Good Faith EstimateStart a cost estimate with B08.21 already added.CMS-1500 Claim FormFill a claim form with B08.21 in box 21.
Other codes in B08.2 Exanthema subitum [sixth disease]
B08.21 questions
What does B08.21 mean?
B08.21 is the ICD-10-CM code for Exanthema subitum [sixth disease] due to human herpesvirus 6. It is in chapter 1, Certain infectious and parasitic diseases (A00-B99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.