ICD-10 Code H74.43 – Polyp of middle ear, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H74.43 – Polyp of middle ear, bilateral
What it is
This code identifies a polyp affecting the middle ear on both sides. It describes a benign-appearing tissue growth documented in the middle ear space, not the external ear canal.
Clinical signs
Clinical features vary; refer to documentation. Commonly, a middle ear polyp is noted on otoscopic exam and may be associated with chronic ear disease, drainage, or conductive hearing concerns.
When to use this code
Use H74.43 when the provider documents a polyp in the middle ear on both sides. Apply it when bilateral involvement is clearly stated in the record, even if the exact cause is not fully described.
If the note only says “ear polyp” or does not specify the middle ear and laterality, check documentation before coding. Make sure the finding is not limited to the external ear or another site.
Do not use for
Do not use this code for unilateral middle ear polyps or for polyps in the external ear canal. Check documentation if the lesion site or side is unclear.
Coding tip
Confirm both location and laterality in the provider note before assigning H74.43.