Chronic myringitis, unspecified ear

This code describes a persistent, non-suppurative inflammation of the tympanic membrane (eardrum) that has an unknown cause or is not further specified. It indicates a long-standing irritation or thickening of the eardrum without acute infection.

Apply this code when documentation indicates chronic inflammation of the eardrum without specifying laterality (left, right, or bilateral) or the underlying etiology. This is appropriate when the physician diagnoses "chronic myringitis" and no further details are provided regarding the affected ear.

• Avoid using this code if laterality is documented; instead, use H73.11 (right ear), H73.12 (left ear), or H73.13 (bilateral).
• Do not confuse with acute myringitis (H73.0-).
• Ensure documentation clearly states "chronic" and does not specify a cause (e.g., bullous myringitis).