ICD-10 Code H71.30 – Diffuse cholesteatosis, unspecified ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H71.30 – Diffuse cholesteatosis, unspecified ear
What it is
H71.30 identifies diffuse cholesteatosis affecting an ear, but the documentation does not specify right or left side. Use this code when the record clearly names diffuse cholesteatosis and leaves the ear laterality unspecified.
Clinical signs
Clinical features vary; refer to documentation. Standard references describe an abnormal cholesteatoma-like process in the ear, often noted on otologic examination or imaging, with findings that support the diagnosis rather than a symptom-only complaint.
When to use this code
Use H71.30 when the clinician documents diffuse cholesteatosis and does not identify the affected ear. It is appropriate for encounter notes, specialist assessments, or operative documentation that confirms the condition without laterality. If the record says only “cholesteatoma” or another ear disorder, check documentation before coding.
Do not use for
Do not use this code when the chart specifies right or left ear, since a laterality-specific code applies. Do not use it for nonspecific ear symptoms, suspected disease, or other middle ear lesions unless diffuse cholesteatosis is clearly documented.
Coding tip
Look for laterality in the assessment, imaging report, or operative note before assigning H71.30.