Chronic atticoantral suppurative otitis media

This code signifies a persistent, purulent infection within the attic (epitympanum) and antrum of the middle ear. It is characterized by chronic inflammation and discharge, often associated with cholesteatoma formation or ossicular erosion. This condition typically involves a perforation of the tympanic membrane.

Apply this code when documentation explicitly states chronic suppurative otitis media localized to the atticoantral region. This diagnosis is supported by findings such as chronic otorrhea, a pars flaccida or marginal tympanic membrane perforation, and imaging (CT scan) showing bone erosion or cholesteatoma in the attic/antrum.

• Differentiate from other forms of chronic otitis media; this code specifically targets the atticoantral involvement.
• Ensure documentation specifies "chronic" and "suppurative" to support this diagnosis.
• Consider co-reporting codes for cholesteatoma (385.3x) if present, as it is a common complication.