J03.00
BillableAcute streptococcal tonsillitis, unspecified
J03.00 is the ICD-10-CM code for Acute streptococcal tonsillitis, unspecified. It is a billable, specific code valid for reimbursement.
J00-J99 Diseases of the respiratory system
What this means — in plain language
MedlinePlus · NIHStrep is short for Streptococcus, a type of bacteria. There are several types. Two of them cause most of the strep infections in people: group A and group B. Group A strep causes: Strep throat - a sore, red throat. Your tonsils may be swollen and have white spots on them. Scarlet fever - an illness that follows strep throat. It causes a red rash on the body. Impetigo - a skin infection Toxic shock syndrome…
Read more about Streptococcal Infections at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Medications indicated for this condition
FDA labelingDrugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.
Conditions mapped to this code
MedlinePlus · NIHPlain-language health-topic references grounded in MedlinePlus (NIH/NLM).
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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