J21.8

ICD-10Billable

Acute bronchiolitis due to other specified organisms

Official ICD-10-CM descriptor (FY2026)

Acute bronchiolitis due to other specified organisms

J21.8 is valid for submission on a claim — CMS flags it as a billable, specific code.

Related codes in J21

J21.0Acute bronchiolitis due to respiratory syncytial virus
J21.1Acute bronchiolitis due to human metapneumovirus
J21.9Acute bronchiolitis, unspecified

Where this code sits

Chapter: 10. Diseases of the respiratory system (J00-J99)
Block: Other acute lower respiratory infections (J20-J22)
Parent code: J21

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.