J06: Acute upper respiratory infections of multiple and unspecified sites
J06.9: Acute upper respiratory infection, unspecified
The respiratory tract guides air into the lungs. The upper respiratory tract begins in the mouth and nose. The sinuses are also part of the upper respiratory tract. The sinuses are connected to the nose via a small opening. The throat is located behind the mouth and nose. The throat connects the mouth and nose with the windpipe (trachea) and gullet (oesophagus). The larynx is located at the junction between the throat and windpipe. The larynx can be seen from the front as a bulge in the neck. The upper respiratory tract ends at the larynx.
An inflammation in the upper respiratory tract can cause various symptoms. You may have sniffling, coughing or a sore throat. You may also be hoarse.
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If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.
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