Edema of larynx

This code signifies the presence of swelling or fluid accumulation within the tissues of the larynx, the voice box. This edema can lead to symptoms such as hoarseness, stridor, difficulty breathing, and a sensation of a lump in the throat. It is a non-specific finding that can be caused by various underlying conditions.

This code is appropriate when documentation explicitly states "edema of larynx" or describes laryngeal swelling without a more specific diagnosis. It is often used as a secondary diagnosis when the underlying cause of the laryngeal edema is known and coded separately. Documentation supporting its use includes direct visualization findings (e.g., laryngoscopy) or clinical assessment noting laryngeal swelling.

• Do not use this code if a more specific cause of laryngeal swelling is identified and documented (e.g., angioedema, allergic reaction, infection).
• Always code the underlying cause of the laryngeal edema first, if known, and use this code as a secondary diagnosis.
• Distinguish from laryngitis (inflammation of the larynx), which may present with edema but has a more specific code.