Acute sinusitis
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In short
Acute sinusitis is a type of sinusitis where the sinuses, which are hollow air spaces within the bones surrounding the nose, become inflamed for up to four weeks. This condition often starts as a cold that turns into a bacterial infection, but it can also be caused by allergies, nasal problems, and certain diseases. Symptoms can include fever, weakness, fatigue, cough, congestion, and postnasal drip. Treatments for the condition include antibiotics, decongestants, pain relievers, heat pads, saline nasal sprays, and vaporizers.
Source: MedlinePlus, National Library of Medicine.
AI-generated summary of the sources cited on this page, checked automatically against them. Not reviewed by a clinician; not medical advice.
Codes
Description
Sinusitis means your sinuses are inflamed. The cause can be an infection or another problem. Your sinuses are hollow air spaces within the bones surrounding the nose. They produce mucus, which drains into the nose. If your nose is swollen, this can block the sinuses and cause pain.
There are several types of sinusitis, including:
- Acute, which lasts up to 4 weeks
- Subacute, which lasts 4 to 12 weeks
- Chronic, which lasts more than 12 weeks and can continue for months or even years
- Recurrent, with several attacks within a year
Acute sinusitis often starts as a cold, which then turns into a bacterial infection. Allergies, nasal problems, and certain diseases can also cause acute and chronic sinusitis.
Symptoms of sinusitis can include fever, weakness, fatigue, cough, and congestion. There may also be mucus drainage in the back of the throat, called postnasal drip. Your health care professional diagnoses sinusitis based on your symptoms and an examination of your nose and face. You may also need imaging tests. Treatments include antibiotics, decongestants, and pain relievers. Using heat pads on the inflamed area, saline nasal sprays, and vaporizers can also help.
Next to it in ICD-10
- I89Lymphoedema and other lymphatic disorders
- I95Low Blood Pressure
- J00Common cold
- J02Acute pharyngitis (sore throat)
- J03Acute tonsillitis, unspecified
- J04Acute laryngitis
Neighbouring codes in the classification, not a medical link.
External resources
Questions
What is the ICD-10 code for Acute sinusitis?
J01 (WHO, International Classification of Diseases, 10th Revision).
What is the ICD-11 code for Acute sinusitis?
CA01: Acute sinusitis (WHO, ICD-11 for Mortality and Morbidity Statistics).
Sources and attribution
- ICD-11 for Mortality and Morbidity Statistics, © World Health Organization, licensed under CC BY-ND 3.0 IGO.
- Names other than the official source titles: Anpheros translations and plain-language names, made with AI assistance and checked automatically; the source names are in English.
- Source: MedlinePlus, National Library of Medicine.
- ICD-10 codes and titles © World Health Organization. Source: WHO, International Classification of Diseases, 10th Revision (2019).
Anpheros Search catalog 2026.10.5, published 17 October 2026. About the data →
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