J03.90 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2026 edition of ICD-10-CM J03.90 became effective on October 1, 2025.
J03.90 is a valid billable ICD-10 diagnosis code for Acute tonsillitis, unspecified. It is found in the 2025 version of the ICD-10 Clinical Modification (CM) and can be used in all HIPAA-covered transactions from Oct 01, 2024 - Sep 30, 2025.
ICD-10-CM Code J03: Acute tonsillitis and Related Diagnosis Codes. The ICD-10-CM (the International Classification of Diseases, Tenth Revision, Clinical Modification) is a standardized coding system used when classifying diseases and medical conditions.
J03.90 is a billable diagnosis code used to specify a medical diagnosis of acute tonsillitis, unspecified. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2025 through September 30, 2026.
The ICD 10 CM category J03 covers acute tonsillitis, which is characterized by inflammation of the tonsils, often resulting in sore throat, difficulty swallowing, and fever.
An acute inflammation of the tonsils caused by viruses or bacteria. Signs and symptoms include fever, enlargement of the tonsils, difficulty swallowing, and enlargement of the regional lymph nodes.
ICD-10 is the 10th revision of the International Statistical Classification of Diseases and Related Health Problems (ICD), a medical classification list by the World Health Organization (WHO).
