H65.2Chronic serous otitis media

H65.2 is the ICD-10-CM diagnosis code for chronic serous otitis media. It belongs to category H65 (nonsuppurative otitis media), block H65-H75 (diseases of middle ear and mastoid) and chapter 8 (diseases of the ear and mastoid process). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

Within H65 (nonsuppurative otitis media), H65.2 is specifically for chronic serous otitis media. Related codes cover acute serous otitis media (H65.0), other acute nonsuppurative otitis media (H65.1), chronic mucoid otitis media (H65.3), other chronic nonsuppurative otitis media (H65.4) and unspecified nonsuppurative otitis media (H65.9).

To report this condition, pick the subcode that matches the documentation: H65.20 (unspecified ear), H65.21 (right ear), H65.22 (left ear) and H65.23 (bilateral).

Use an additional code for any associated perforated tympanic membrane (H72.-). Use an additional code, if applicable, to identify: exposure to environmental tobacco smoke (Z77.22), exposure to tobacco smoke in the perinatal period (P96.81), history of tobacco dependence (Z87.891), infectious agent (B95-B97), occupational exposure to environmental tobacco smoke (Z57.31) and 2 more.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.