J45.1: Nonallergic asthma
Nonallergic asthma, represented by the ICD-10 code J45.1, is a type of chronic inflammatory disease of the airways that is not triggered by allergens. Unlike typical asthma, which is often provoked by exposure to substances like pollen, pet dander, or certain foods, nonallergic asthma occurs due to other factors such as stress, cold air, exercise, or exposure to irritants like smoke. It presents with typical asthma symptoms which include shortness of breath, chest tightness, wheezing, and coughing. Symptoms may vary in frequency and severity, and may flare up during or after exposure to specific triggers. The condition can affect anyone at any age, but it often starts in adulthood. The exact cause of nonallergic asthma is not known, but it's believed that a combination of genetic and environmental factors play a role.
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