ICD-10 Code H93.12 – Tinnitus, left ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H93.12 – Tinnitus, left ear
What it is
H93.12 identifies tinnitus limited to the left ear. It means the patient perceives ringing, buzzing, hissing, or similar sound in that ear without an external source.
Clinical signs
Patients may report unilateral ear noise, intermittent or constant, sometimes affecting sleep or concentration. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly documents tinnitus in the left ear only. It is appropriate when the provider specifies laterality and does not describe bilateral or unspecified tinnitus. If the note is unclear, check documentation before coding.
Do not use for
Do not use H93.12 for tinnitus documented in both ears or without laterality. Do not assign it when tinnitus is only mentioned as a symptom of another confirmed condition unless the provider documents it separately.
Coding tip
Always look for explicit left-ear laterality in the assessment or diagnosis statement before assigning H93.12.