section_path: Diagnosis/Classification/Phenotyping and endotyping
section_name: Phenotyping and endotyping
paragraph_text: Phenotyping and endotyping
  
  Asthma phenotyping and endotyping has emerged as a novel approach to asthma classification inspired by precision medicine which separates the clinical presentations of asthma, or asthma phenotypes, from their underlying causes, or asthma endotypes. The best-supported endotypic distinction is the type 2-high/type 2-low distinction. Classification based on type 2 inflammation is useful in predicting which patients will benefit from targeted biologic therapy.