Q16.2
Billable codeAbsence of eustachian tube
The ICD-10 code for absence of eustachian tube is Q16.2.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- Q16.0Congenital absence of (ear) auricle
- Q16.1Congenital absence, atresia and stricture of auditory canal (external)
- Q16.3Congenital malformation of ear ossicles
- Q16.4Other congenital malformations of middle ear
- Q16.5Congenital malformation of inner ear
- Q16.9Congenital malformation of ear causing impairment of hearing, unspecified
- Q16.2Absence of eustachian tube
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 74424Approximate match
Associated MS-DRGs
Q16.2 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.