B08.2Exanthema subitum [sixth disease]

B08.2 is the ICD-10-CM diagnosis code for exanthema subitum [sixth disease]. It belongs to category B08 (other viral infections characterized by skin and mucous membrane lesions, not elsewhere classified), block B00-B09 (viral infections characterized by skin and mucous membrane lesions) and chapter 1 (certain infectious and parasitic diseases). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within B08 (other viral infections characterized by skin and mucous membrane lesions, not elsewhere classified), B08.2 is specifically for exanthema subitum [sixth disease]. Related codes cover other orthopoxvirus infections (B08.0), Molluscum contagiosum (B08.1), erythema infectiosum [fifth disease] (B08.3), enteroviral vesicular stomatitis with exanthem (B08.4), enteroviral vesicular pharyngitis (B08.5), parapoxvirus infections (B08.6), yatapoxvirus infections (B08.7) and other specified viral infections characterized by skin and mucous membrane lesions (B08.8).

To report this condition, pick the subcode that matches the documentation: B08.20 (unspecified), B08.21 (due to human herpesvirus 6) and B08.22 (due to human herpesvirus 7).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.