ICD-10 Code H74.322 – Partial loss of ear ossicles, left ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H74.322 – Partial loss of ear ossicles, left ear
What it is
This code identifies partial loss or absence of one or more middle-ear ossicles in the left ear. It reflects an anatomic abnormality that can affect sound transmission.
Clinical signs
Patients may have conductive hearing loss, reduced hearing acuity, or a history of middle-ear disease or trauma. Clinical features vary; refer to documentation.
When to use this code
Use H74.322 when the record specifically documents partial loss of the ear ossicles in the left ear. It is appropriate when the finding is confirmed by otologic examination, imaging, or operative report. Code the documented laterality exactly as stated.
Do not use for
Do not use this code for total ossicular loss, right ear, or bilateral involvement. If the note only mentions hearing loss without an anatomic diagnosis, check documentation.
Coding tip
Verify the left-side laterality and whether the loss is partial before assigning H74.322.