ICD-10-CM 2027 diagnosis code

I11Hypertensive heart disease

Not billable — use a more specific code

I11 is a header code, so it can't be reported by itself. Choose one of the 2 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 I11

I11 is the ICD-10-CM diagnosis code for hypertensive heart disease. It belongs to block I10-I1A (hypertensive diseases) and chapter 9 (diseases of the circulatory system). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: I11.0 (with heart failure) and I11.9 (without heart failure).

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 I11

Coding notes

IncludesFurther defines the content of the category

any condition in I50.- or I51.4-I51.7, I51.89, I51.9 due to hypertension

Notes that apply from higher levels

Instructions written at a parent level also apply to I11.

Broader instructions also apply from I10-I1A Hypertensive diseases and Chapter 9: Diseases of the circulatory system.

Codes whose notes reference I11

I13Includes
I51.5Excludes1
I51.7Excludes1
I67.4Code also
I87.2Code also
O10.1Use additional code

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 I11

Is I11 billable?: No. I11 is a header code. Report one of its more specific subcodes instead.