ICD-10 Code H74.02 – Tympanosclerosis, left ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H74.02 – Tympanosclerosis, left ear
What it is
Tympanosclerosis of the left ear means scarring or calcification in the eardrum or middle ear structures on the left side. It is a chronic structural change, not an acute infection.
Clinical signs
Findings may include a white, chalky, or opaque area on otoscopic exam and possible conductive hearing loss. Clinical features vary; refer to documentation.
When to use this code
Use H74.02 when the clinician documents tympanosclerosis specifically in the left ear. Code it when the record identifies left-sided involvement and the condition is the reason for evaluation or a confirmed diagnosis.
If the note only mentions prior ear disease, scarring, or hearing loss without naming tympanosclerosis, check documentation before assigning this code.
Do not use for
Do not use this code for tympanosclerosis of the right ear, both ears, or unspecified ear. Do not use it for simple otitis media or ear scarring unless tympanosclerosis is documented.
Coding tip
Always confirm laterality in the assessment or impression before coding H74.02.