2027 ICD-10-CM Diagnosis Code I11Hypertensive heart disease

ICD-10-CM Codes›I00–I99›I10-I1A›I11

ICD-10-CM I11
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

I11 is a non-billable ICD-10-CM category code for hypertensive heart disease, so it cannot be submitted on claims. Use a more specific code from this category instead, such as I11.0 and I11.9.

Code Identity

ICD-10-CM Code
I11
Billable Status
No — Non-Billable Category
Code Describes
Hypertensive heart disease
Short Description
Hypertensive heart disease
Same as the full description in the CMS dataset.
Chapter
I10-I1A
Hypertensive diseases

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI10-I1AHypertensive diseases
CategoryI11Hypertensive heart disease
This CodeI11Hypertensive heart disease

Specific Coding for Hypertensive heart diseaseOverview

Non-specific codes like I11 require more characters. Use one of these billable codes instead:

  • Use I11.0 for Hypertensive heart disease with heart failure

  • Use I11.9 for Hypertensive heart disease without heart failure

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to I11: its own notes plus those printed at block I10-I1A and Chapter 9. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Block I10-I1A Hypertensive diseases applies to 18 codes
  • neonatal hypertension (P29.2)
  • primary pulmonary hypertension (I27.0)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Block I10-I1A Hypertensive diseases applies to 18 codes
  • hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)
From Chapter 9 (I00-I99) Diseases of the circulatory system applies to 1,433 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • transient cerebral ischemic attacks and related syndromes (G45.-)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Block I10-I1A Hypertensive diseases applies to 18 codes
  • code to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name I11, its category, or a range that includes it.

Includes 1

These notes mention I11.

  • I13 Hypertensive heart and chronic kidney disease
    any condition in I11.- with any condition in I12.-

Applicable To 1

These notes mention I11.

  • O10.1 Pre-existing hypertensive heart disease complicating pregnancy, childbirth and the puerperium
    Any condition in I11 specified as a reason for obstetric care during pregnancy, childbirth or the puerperium

Excludes1 2

These codes carry an Excludes1 note naming I11: they are not reported together with it, unless the two conditions are unrelated.

  • I51.5 Myocardial degeneration
    myocardial degeneration due to hypertension (I11.-)
  • I51.7 Cardiomegaly
    cardiomegaly due to hypertension (I11.-)

Use Additional Code 3

These codes say to use an additional code from the note, and I11 is one of the codes named.

  • O10.1 Pre-existing hypertensive heart disease complicating pregnancy, childbirth and the puerperium
    code from I11 to identify the type of hypertensive heart disease
  • G31.84 Mild cognitive impairment of uncertain or unknown etiology
    hypertension (I10-I1A) names I10-I1A, which includes this code
  • Block I60-I69 Cerebrovascular diseases
    hypertension (I10-I1A) names I10-I1A, which includes this code

Code Also 5

These codes say I11 may also be needed to fully describe the condition. The note gives no sequencing direction.

  • I67.4 Hypertensive encephalopathy
    hypertensive heart disease (I11.-)
  • I87.2 Venous insufficiency (chronic) (peripheral)
    hypertensive heart disease (I11.-)
  • I16 Hypertensive crisis
    any identified hypertensive disease (I10-I15, I1A) names I10-I15, which includes this code
  • Block I20-I25 Ischemic heart diseases
    the presence of hypertension (I10-I1A) names I10-I1A, which includes this code
  • Z15.3 Genetic susceptibility to kidney disease
    if applicable, hypertension (I10-I1A) names I10-I1A, which includes this code

Patient EducationClinical

Heart Diseases

Heart disease is a general term that includes many types of heart problems. It's a type of cardiovascular disease, which means heart and blood vessel disease.

The full article covers:

  • What is heart disease?
  • What are the types of heart disease?
  • What causes heart diseases?
  • Who is more likely to develop heart diseases?
  • What are the symptoms of heart disease?
  • How are heart diseases diagnosed?
  • What are the treatments for heart disease?
  • Can heart diseases be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About I11Overview

What is the ICD-10 code for hypertensive heart disease?

I11 is the ICD-10-CM category for hypertensive heart disease, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is I11 (Hypertensive heart disease) a billable code?

No. This is a category header that groups the codes for hypertensive heart disease, and headers cannot be submitted on claims. Claims for hypertensive heart disease need a more specific code from this category, such as I11.0 and I11.9.

Can I11 be reported with P29.2?

Not as a rule. The Excludes1 note at block I10-I1A, which applies to I11, lists "neonatal hypertension (P29.2)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).