J03.90

Billable

Acute tonsillitis, unspecified

J03.90 is the ICD-10-CM code for Acute tonsillitis, unspecified. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
J00-J99
Parent
J03.9
Edition
FY2026

J00-J99 Diseases of the respiratory system

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code J03.90?
J03.90 is the ICD-10-CM code for "Acute tonsillitis, unspecified". It falls under J00-J99 Diseases of the respiratory system.
Is J03.90 a billable code?
Yes — J03.90 is a billable, specific ICD-10-CM code valid for reimbursement.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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