ICD-10-CM
ICD-10 code for Agenesis eustachian tube: Q16.2
The ICD-10-CM index points "Agenesis eustachian tube" to Q16.2, Absence of eustachian tube. Q16.2 is a billable code.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
Run it in Rivvi
Check every code on your export
Upload a claims or problem-list export. Rivvi flags codes that are not billable, replaced, or unspecified when a specific code exists.
Check my exportFree to start. Opens Rivvi, the AI workspace for healthcare teams.
More specific codes in Q16
A header groups codes and is not billed. A billable code is one you can report.
- Q16Congenital malformations of ear causing impairment of hearingHeader
- Q16.0Congenital absence of (ear) auricleBillable
- Q16.1Congenital absence, atresia and stricture of auditory canal (external)Billable
- Q16.2Absence of eustachian tubeBillable
- Q16.3Congenital malformation of ear ossiclesBillable
- Q16.4Other congenital malformations of middle earBillable
- Q16.5Congenital malformation of inner earBillable
- Q16.9Congenital malformation of ear causing impairment of hearing, unspecifiedBillable
Excludes1
Excludes1 means these codes are not reported together.
From Q16. A note on a category applies to every code under it.
Related conditions
Related pages
- Q16.2 code detailsNotes, nearby codes, CMS-HCC group
- Category Q16Every code under it
- Chapter 17Congenital malformations and chromosomal abnormalities
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Agenesis eustachian tube?
The ICD-10-CM index points "Agenesis eustachian tube" to Q16.2, Absence of eustachian tube. Q16.2 is a billable code.
Is Q16.2 billable?
Yes. Q16.2 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to Q16.2?
The CDC tabular list gives 1 Excludes1 note (not coded together) for Q16.2 and the categories above it. They are listed on this page.
What chapter is Q16.2 in?
Chapter 17. Congenital malformations and chromosomal abnormalities.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.