Definition: Number of hospital discharges for a primary diagnosis of asthma per 10,000 children ages 0-17, by age group (e.g., in 2024, the asthma hospitalization rate among California children ages 0-4 was 14.5 per 10,000).
Data Source: California Breathing, tabulation of data from the California Dept. of Health Care Access and Information (May 2026).
Footnote: Data are based on the number of hospitalizations, not the number of children hospitalized. Data are limited to hospital admissions; emergency department visits that do not result in admission are excluded. Transfers from one hospital to another are treated as separate hospitalizations. County-level data reflect the patient's county of residence, not the county in which the hospitalization occurred. Data are based on International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code J45. The notation S refers to data that have been suppressed because there were fewer than 12 asthma hospitalizations in that group.
