ICD-10-CM · Billable Code
J45.51 — Severe persistent asthma with (acute) exacerbation
Chapter J00-J99: Diseases of the respiratory system
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Common questions about J45.51 (Severe persistent asthma with (acute) exacerbation)
What does ICD-10 code J45.51 mean?
J45.51 is the ICD-10-CM 2025 code for Severe persistent asthma with (acute) exacerbation. ICD-10-CM is the medical coding system used by clinicians, hospitals and insurers worldwide to classify diseases and conditions in a standard way.
Is J45.51 a billable diagnosis code?
Yes, J45.51 is a billable / specific ICD-10-CM code, meaning it can be used by clinicians and hospitals as a primary or secondary diagnosis on claims and electronic health records.
Which ICD-10 chapter does J45.51 belong to?
J45.51 belongs to the chapter "Diseases of the respiratory system" (codes J00-J99). ICD-10-CM organises codes into 22 chapters by body system or condition type, which helps clinicians navigate related diagnoses.
Where can I get plain-language information about Severe persistent asthma with (acute) exacerbation?
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Source: ICD-10-CM 2025 (Centers for Medicare & Medicaid Services, public domain). Codes valid from October 1, 2024. CMS source ↗