ICD-10 Code H60.40 – Cholesteatoma of External Ear, Unspecified Ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H60.40 – Cholesteatoma of external ear, unspecified ear
What it is
This code identifies cholesteatoma involving the external ear, with the ear side not specified. It refers to an abnormal keratinizing lesion in the external ear canal; check documentation for laterality and exact site.
Clinical signs
Typical findings may include a visible keratin debris mass, ear canal obstruction, or chronic local irritation. Clinical features vary; refer to documentation for any associated drainage, pain, or hearing impact.
When to use this code
Use H60.40 when the provider documents cholesteatoma of the external ear but does not specify right or left ear. It is also appropriate when the note confirms the condition without further anatomic detail. If the record names a different ear disorder, code that diagnosis instead.
Do not use for
Do not use this code for middle ear cholesteatoma or for nonspecific external ear inflammation without a documented cholesteatoma. Check documentation if the lesion is described only as debris, infection, or mass.
Coding tip
Verify laterality and site in the chart, because unspecified ear codes should be used only when documentation truly lacks that detail.