Exanthema subitum [sixth disease] due to human herpesvirus 6
- B08.21 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2024 edition of ICD-10-CM B08.21 became effective on October 1, 2023.
- This is the American ICD-10-CM version of B08.21 – other international versions of ICD-10 B08.21 may differ.
ADICD-10-CM Coding Rules
- B08.21 is applicable to pediatric patients aged 0 – 17 years inclusive.
Applicable To
- Roseola infantum due to human herpesvirus 6
The following code(s) above B08.21 contain annotation back-references
that may be applicable to B08.21:
- A00-B99 Certain infectious and parasitic diseases
- B08 Other viral infections characterized by skin and mucous membrane lesions, not elsewhere classified
- B08.2 Exanthema subitum [sixth disease]
Approximate Synonyms
- Roseola infantum (hhv 6)
- Roseola infantum due to human herpesvirus 6
ICD-10-CM B08.21 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):
- 791 Prematurity with major problems
- 793 Full term neonate with major problems
- 865 Viral illness with mcc
- 866 Viral illness without mcc
Convert B08.21 to ICD-9-CMCode History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
- 2024 (effective 10/1/2023): No change
Diagnosis Index entries containing back-references to B08.21:
- Disease, diseased – see also Syndrome
- Exanthem, exanthema – see also Rash
- RoseolaB09
- Sixth diseaseB08.20
- due to human herpesvirus 6 B08.21