ICD-10-CM 2027 diagnosis code

Q25Congenital malformations of great arteries

Not billable — use a more specific code

Q25 is a header code, so it can't be reported by itself. Choose one of the 10 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 Q25

Q25 is the ICD-10-CM diagnosis code for congenital malformations of great arteries. It belongs to block Q20-Q28 (congenital malformations of the circulatory system) 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 10 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: Q25.0 (arteriosus), Q25.1 (aorta), Q25.2 (aorta), Q25.3 (stenosis), Q25.4 (aorta), Q25.5 (artery), Q25.6 (artery), Q25.7 (artery) and 2 more.

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 Q25

Notes that apply from higher levels

Instructions written at a parent level also apply to Q25.

Broader instructions also apply from 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 Q25

Is Q25 billable?: No. Q25 is a header code. Report one of its more specific subcodes instead.