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H69.90 — Unspecified Eustachian tube disorder, unspecified ear
H69.90
What this code means
A disorder of the Eustachian tube, which connects the middle ear to the throat and equalises pressure; side not specified.
Also called: eustachian tube disorder, eustachian tube dysfunction.
When this code is used
Used for unspecified Eustachian tube disorder of an unspecified ear.
Where it sits in ICD-10-CM
Code H69.90 belongs to Chapter 8: Diseases of the ear and mastoid process, which covers codes H60–H95 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.
Related anatomy
Watch: related videos
Frequently asked questions
What is ICD-10-CM code H69.90?
H69.90 is the ICD-10-CM diagnosis code for “Unspecified Eustachian tube disorder, unspecified ear”. A disorder of the Eustachian tube, which connects the middle ear to the throat and equalises pressure; side not specified.
When is code H69.90 used?
Used for unspecified Eustachian tube disorder of an unspecified ear. It belongs to Chapter 8 of ICD-10-CM (Diseases of the ear and mastoid process).
This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.