ICD-10-CM 2027 diagnosis code
Q17Other congenital malformations of ear
Q17 is a header code, so it can't be reported by itself. Choose one of the 8 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About Q17
Q17 is the ICD-10-CM diagnosis code for other congenital malformations of ear. It belongs to block Q10-Q18 (congenital malformations of eye, ear, face and neck) and chapter 17 (congenital malformations, deformations, chromosomal abnormalities, and genetic disorders). It is a header code, so it can't be reported by itself; one of its 8 subcodes must be used instead.
To report this condition, pick the subcode that matches the documentation: Q17.0 (auricle), Q17.1 (Macrotia), Q17.2 (Microtia), Q17.3 (ear), Q17.4 (ear), Q17.5 (ear), Q17.8 (ear) and Q17.9 (unspecified).
Don't report Q17 together with the conditions in its Excludes1 note: congenital malformations of ear with impairment of hearing (Q16.0-Q16.9) and preauricular sinus (Q18.1).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under Q17
Coding notes
Notes that apply from higher levels
Instructions written at a parent level also apply to Q17.
Broader instructions also apply from Q10-Q18 Congenital malformations of eye, ear, face and neck and Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about Q17
Is Q17 billable?
- No. Q17 is a header code. Report one of its more specific subcodes instead.