ICD-10 Code for Roseola
The ICD-10-CM code for roseola is B09 — Unspecified viral infection characterized by skin and mucous membrane lesions. This is the code the Alphabetic Index gives for roseola with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
B09 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which roseola code should you use?
The Alphabetic Index lists 4 codes under Roseola. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| infantum | B08.20 | Exanthema subitum [sixth disease], unspecified |
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources