ICD-10 Code H74.40 – Polyp of middle ear, unspecified ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H74.40 – Polyp of middle ear, unspecified ear
What it is
H74.40 identifies a polyp arising in the middle ear when the affected ear is not specified. It indicates an abnormal tissue growth in the middle ear space, usually documented by the clinician.
Clinical signs
Clinical features vary; refer to documentation. Middle ear polyps are often associated with persistent ear drainage, visible aural mass, or chronic ear disease findings on otoscopic examination.
When to use this code
Use H74.40 when the record states a middle ear polyp and does not identify right or left ear. Apply it when the provider documents the diagnosis clearly, such as during ENT evaluation or follow-up of chronic ear symptoms.
If the note only mentions an ear canal lesion, another middle ear disorder, or an unspecified mass without confirming a polyp, check documentation before coding.
Do not use for
Do not use this code for polyps in the external ear canal or for unrelated middle ear masses that are not documented as polyps. Do not assume laterality if the chart does not specify it.
Coding tip
Code the diagnosis exactly as documented and verify that “middle ear” is stated before assigning H74.40.