ICD-10-CM > H60-H95 > H60-H62 > H60 > H60.4 H60.4 Cholesteatoma of external ear Non-Billable/Non-Specific Applicable To Keratosis obturans of external ear (canal) Type 2 Excludes cholesteatoma of middle ear (H71.-)recurrent cholesteatoma of postmastoidectomy cavity (H95.0-) Codes H60.40Cholesteatoma of external ear, unspecified earH60.41Cholesteatoma of right external earH60.42Cholesteatoma of left external earH60.43Cholesteatoma of external ear, bilateral