ICD-10 Code H73.823 – Atrophic nonflaccid tympanic membrane, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H73.823 – Atrophic nonflaccid tympanic membrane, bilateral
What it is
H73.823 identifies thinning or atrophy of both tympanic membranes while they remain nonflaccid. It documents a structural ear drum abnormality rather than an infection or perforation.
Clinical signs
Findings may include a thin, retracted, or scarred tympanic membrane on otoscopic exam. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents bilateral atrophic nonflaccid tympanic membranes, often as an exam finding or chronic ear change. It can support coding when the abnormality is specifically described and not better represented by another diagnosis.
Code it only when both ears are involved. If the note mentions perforation, acute otitis media, or another specific middle-ear disorder, you should code the documented condition instead.
Do not use for
Do not use H73.823 for a flaccid tympanic membrane, unilateral atrophy, or a tympanic membrane perforation. Check documentation if the record does not clearly state bilateral involvement.
Coding tip
Look for the exact terms “atrophic” and “bilateral” in the ear exam or assessment before assigning H73.823.