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J04.0 — Acute laryngitis
J04.0
What this code means
Acute laryngitis is inflammation of the voice box (larynx), causing hoarseness or loss of voice.
Also called: laryngitis, acute laryngitis.
When this code is used
Used for acute laryngitis.
Where it sits in ICD-10-CM
Code J04.0 belongs to Chapter 10: Diseases of the respiratory system, which covers codes J00–J99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.
Related symptoms
Frequently asked questions
What is ICD-10-CM code J04.0?
J04.0 is the ICD-10-CM diagnosis code for “Acute laryngitis”. Acute laryngitis is inflammation of the voice box (larynx), causing hoarseness or loss of voice.
When is code J04.0 used?
Used for acute laryngitis. It belongs to Chapter 10 of ICD-10-CM (Diseases of the respiratory system).
This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.