ICD-10 Code H60.31 – Diffuse otitis externa (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H60.31 – Diffuse otitis externa
What it is
Diffuse otitis externa is inflammation and infection of the external ear canal, usually involving most or all of the canal rather than one small spot. Use this code when documentation specifically identifies diffuse involvement.
Clinical signs
Typical findings include ear canal redness, swelling, tenderness, and pain that worsens with movement of the outer ear. Clinical features vary; refer to documentation.
When to use this code
Use H60.31 when the record states diffuse otitis externa, swimmer’s ear, or generalized external auditory canal inflammation affecting the canal broadly. Confirm laterality and any associated details in the note. If the provider documents a different otitis externa type, code that specific diagnosis instead.
Do not use for
Do not use this code for localized furuncles, chronic suppurative ear disease, or middle ear infections. Check documentation if the note does not clearly describe diffuse external canal involvement.
Coding tip
Match the code to the provider’s exact otitis externa type and laterality documentation before assigning H60.31.