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| Acute laryngitis | ||
|---|---|---|
| ICD-10 code: | J04.0 | |
| ICD-9 code: | 464.0-464.4 | |
| Chronic laryngitis | ||
|---|---|---|
| ICD-10 code: | J37 | |
| ICD-9 code: | 476.0-476.1 | |
Laryngitis is an inflammation of the larynx. It causes hoarse voice or the complete loss of the voice because of irritation to the vocal folds (vocal cords).
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It is categorized as acute if it lasts less than a few days. [1] Otherwise it is categorized as chronic.
Laryngitis is often caused by a virus or by bacteria.
Other causes include smoking, various allergies, reflux and straining the voice through singing or shouting.