ICD-9-CM Diagnosis Code 466.11
Diagnosis Code: 466.11 (Raw: 46611)
Description: Acute bronchiolitis due to respiratory syncytial virus (RSV)
Classification: International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM)
Fiscal Year: 2026 Reference
CMS Section 111 Status: Valid for reporting.
Overview & Historical Usage
ICD-9-CM code 466.11 is designated for Acute bronchiolitis due to respiratory syncytial virus (RSV). While superseded by ICD-10 for current healthcare encounters, it remains a recognized reference code for CMS Section 111 reporting, legacy claims adjudication, and historical clinical data analysis.
