ICD-10 Code H71.33 – Diffuse cholesteatosis, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H71.33 – Diffuse cholesteatosis, bilateral
What it is
H71.33 identifies diffuse cholesteatosis affecting both ears. Use it when the record documents widespread cholesteatoma-like disease rather than a localized ear lesion.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include chronic ear disease, persistent drainage, hearing loss, or evidence of destructive middle-ear changes on examination or imaging.
When to use this code
Use this code when the provider specifically documents diffuse cholesteatosis and notes bilateral involvement. It is appropriate for confirmed diagnoses in outpatient, inpatient, or operative records when the condition is the reason for evaluation or treatment.
If the chart only mentions cholesteatoma, chronic otitis media, or ear debris without bilateral diffuse cholesteatosis, check documentation before assigning H71.33. Code the documented diagnosis, not a suspected or incomplete description.
Do not use for
Do not use this code for unilateral disease, localized cholesteatosis, or nonspecific chronic ear infection. If the record does not clearly state both ears are involved, check documentation.
Coding tip
Confirm the exact wording in the assessment, operative note, or pathology report before coding H71.33.