ICD-10 Code H73.813 – Atrophic flaccid tympanic membrane, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H73.813 – Atrophic flaccid tympanic membrane, bilateral
What it is
This code identifies thinning and laxity of both tympanic membranes, often described as atrophic or flaccid. It reflects a structural ear finding rather than an infection or hearing disorder by itself.
Clinical signs
Look for a markedly thin, retracted, or floppy tympanic membrane on otoscopy. Clinical features vary; refer to documentation for whether the finding is bilateral and whether hearing changes are noted.
When to use this code
Use H73.813 when the provider documents atrophic flaccid tympanic membranes in both ears. Code it for a confirmed exam finding, such as during ENT evaluation or routine otoscopic assessment. If the note does not clearly specify bilateral involvement, check documentation before assigning this code.
Do not use for
Do not use this code for acute otitis media, tympanic membrane perforation, or nonspecific ear pain. If the record only mentions a unilateral finding or another tympanic membrane disorder, choose the documented condition instead.
Coding tip
Confirm both laterality and the exact membrane description in the exam note before coding.