ICD-10 Code H65.05 – Acute serous otitis media, recurrent, left ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H65.05 – Acute serous otitis media, recurrent, left ear
What it is
Use this code for recurrent episodes of serous otitis media affecting the left ear. It describes middle-ear fluid without acute bacterial ear infection signs.
Clinical signs
Typical findings include middle-ear effusion, ear fullness, muffled hearing, or mild discomfort. Clinical features vary; refer to documentation.
When to use this code
Assign H65.05 when the record clearly states recurrent acute serous otitis media in the left ear. Use it when the provider documents left-sided effusion or serous otitis media and identifies recurrence. Check documentation if laterality or recurrence is unclear.
Do not use for
Do not use this code for nonspecific otitis media, acute suppurative otitis media, or right/unspecified ear conditions. Check documentation if the chart does not confirm serous disease.
Coding tip
Verify both recurrence and left laterality in the provider note before assigning H65.05.