Acute myringitis, right ear

This code signifies an acute inflammation of the tympanic membrane (eardrum) in the right ear. It is characterized by sudden onset and may involve redness, swelling, and blistering of the eardrum, often without middle ear effusion.

Assign this code when documentation clearly indicates acute inflammation of the right tympanic membrane, such as "acute myringitis, right ear" or "bullous myringitis, right ear." This diagnosis is typically made upon otoscopic examination revealing characteristic findings.

• Differentiate from otitis media; myringitis primarily affects the tympanic membrane, while otitis media involves the middle ear.
• Ensure laterality is clearly documented (right, left, bilateral, or unspecified).
• If the myringitis is due to an underlying infection, code the infection first, if known, followed by this code.