ICD-10 Code H73.93 – Unspecified disorder of tympanic membrane, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H73.93 – Unspecified disorder of tympanic membrane, bilateral
What it is
H73.93 identifies a disorder affecting both tympanic membranes, but the exact condition is not specified. Use it when the record notes bilateral eardrum abnormality without a more precise diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Findings may include abnormal tympanic membrane appearance on otoscopy, such as scarring, retraction, thickening, perforation, or other nonspecific changes.
When to use this code
Use this code when the clinician documents a bilateral tympanic membrane disorder but does not name the specific abnormality. It is also appropriate when both eardrums are involved and the note does not support a more specific code.
Check laterality carefully and confirm that the documentation supports bilateral involvement. If the record identifies a distinct condition, code that diagnosis instead of this unspecified category.
Do not use for
Do not use H73.93 when the diagnosis is unilateral, specific, or better described by another tympanic membrane code. Do not use it for middle ear disease without tympanic membrane involvement.
Coding tip
If the note is vague, query for the exact tympanic membrane diagnosis before defaulting to this unspecified bilateral code.