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J45.901

✓ Billable

Unspecified asthma with (acute) exacerbation

Diseases of the respiratory system (J00-J99)

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✅ No additional coding notes for J45.901

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Code Information

CodeJ45.901
BillableYes
ParentJ45.90
CategoryDiseases of the respiratory system (J00-J99)
Excludes10 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)