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ICD-10-CM category

J21: Acute bronchiolitis

4 subcodes · 4 billable · Look up any code with the ICD-10 search

Codes under J21 (Acute bronchiolitis). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

CodeDescriptionBillable
J21.0Acute bronchiolitis due to respiratory syncytial virus✓
J21.1Acute bronchiolitis due to human metapneumovirus✓
J21.8Acute bronchiolitis due to other specified organisms✓
J21.9Acute bronchiolitis, unspecified✓

More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees

Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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