NCIthesaurus has phenotype has symptom tonsillitis SNOMEDCT_US_2025_09_01:195794009 ICD10CM:J35.01 An upper respiratory tract disease which is characterized by inflammation of the tonsils resulting from bacterial (Group A streptococcus) and viral (Epstein-Barr virus, adenovirus) infections. Symptoms include a severe sore throat, painful or difficult swallowing, coughing, headache, myalgia, fever and chills. SNOMEDCT_US_2025_09_01:195665006 disease_ontology DOID:10456 UMLS_CUI:C0040425 DOID:10454 MESH:D014069 ICD9CM:474.00 NCI:C116006 DOID:13751 Throat infection - tonsillitis UMLS_CUI:C0149517 chronic tonsillitis upper respiratory tract disease Abnormality of the tonsils inflammation dysphagia headache fever cough chills pharynx inflammation