2027 ICD-10-CM Diagnosis Code I50Heart failure

ICD-10-CM Codes›I00–I99›I30-I5A›I50

ICD-10-CM I50
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

I50 is a non-billable ICD-10-CM category code for heart failure, so it cannot be submitted on claims. Use a more specific code from this category instead, such as I50.1, I50.20, I50.21, and I50.22.

This medical diagnosis code is frequently used in Cardiology medical specialties to designate conditions such heart failure.

Code Identity

ICD-10-CM Code
I50
Billable Status
No — Non-Billable Category
Code Describes
Heart failure
Short Description
Heart failure
Same as the full description in the CMS dataset.
Chapter
I30-I5A
Other forms of heart disease

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI30-I5AOther forms of heart disease
CategoryI50Heart failure
This CodeI50Heart failure

Specific Coding for Heart failureOverview

Non-specific codes like I50 require more characters. Use one of these billable codes instead:

  • Use I50.1 for Left ventricular failure, unspecified

  • I50.2 for Systolic (congestive) heart failure

  • Use I50.20 for Unspecified systolic (congestive) heart failure

  • Use I50.21 for Acute systolic (congestive) heart failure

  • Use I50.22 for Chronic systolic (congestive) heart failure

  • Use I50.23 for Acute on chronic systolic (congestive) heart failure

  • I50.3 for Diastolic (congestive) heart failure

  • Use I50.30 for Unspecified diastolic (congestive) heart failure

  • Use I50.31 for Acute diastolic (congestive) heart failure

  • Use I50.32 for Chronic diastolic (congestive) heart failure

  • Use I50.33 for Acute on chronic diastolic (congestive) heart failure

  • I50.4 for Combined systolic (congestive) and diastolic (congestive) heart failure

  • Use I50.40 for Unspecified combined systolic (congestive) and diastolic (congestive) heart failure

  • Use I50.41 for Acute combined systolic (congestive) and diastolic (congestive) heart failure

  • Use I50.42 for Chronic combined systolic (congestive) and diastolic (congestive) heart failure

  • Use I50.43 for Acute on chronic combined systolic (congestive) and diastolic (congestive) heart failure

  • I50.8 for Other heart failure

  • I50.81 for Right heart failure

  • Use I50.82 for Biventricular heart failure

  • Use I50.83 for High output heart failure

  • Use I50.84 for End stage heart failure

  • Use I50.89 for Other heart failure

  • Use I50.9 for Heart failure, unspecified

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to I50: its own notes plus those printed at Chapter 9. A note printed at a category, block or chapter applies to every code under it.

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.

On I50 itself
  • cardiac arrest (I46.-)
  • neonatal cardiac failure (P29.0)
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.-)

Code First

The underlying condition named in the note is sequenced before this code.

  • heart failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.8)
  • heart failure due to hypertension (I11.0)
  • heart failure due to hypertension with chronic kidney disease (I13.-)
  • heart failure following surgery (I97.13-)
  • obstetric surgery and procedures (O75.4)
  • rheumatic heart failure (I09.81)

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

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name I50, its category, or a range that includes it.

Includes 1

These notes mention I50.

  • I11 Hypertensive heart disease
    any condition in I50.- or I51.4-I51.7, I51.89, I51.9 due to hypertension

Excludes2 1

These codes carry an Excludes2 note naming I50: its condition is not part of those codes, and both may be reported when the patient has both.

  • J91 Pleural effusion in conditions classified elsewhere
    pleural effusion in heart failure (I50.-)

Code First 1

These codes say to code first a condition named in the note, and I50 is one of the conditions named.

  • I5A Non-ischemic myocardial injury (non-traumatic)
    heart failure (I50.-)

Use Additional Code 5

These codes say to use an additional code from the note, and I50 is one of the codes named.

  • I09.81 Rheumatic heart failure
    code to identify type of heart failure (I50.-)
  • I11.0 Hypertensive heart disease with heart failure
    code to identify type of heart failure (I50.-)
  • I13.0 Hypertensive heart and chronic kidney disease with heart failure and stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease
    code to identify type of heart failure (I50.-)
  • I13.2 Hypertensive heart and chronic kidney disease with heart failure and with stage 5 chronic kidney disease, or end stage renal disease
    code to identify type of heart failure (I50.-)
  • I97.13 Postprocedural heart failure
    code to identify the heart failure (I50.-)

Code Also 4

These codes say I50 may also be needed to fully describe the condition. The note gives no sequencing direction.

  • E83.820 Generalized arterial calcification of infancy with unspecified genetic causality
    heart failure (I50.-)
  • E83.821 ENPP1 deficiency causing generalized arterial calcification of infancy
    heart failure (I50.-)
  • E83.823 ABCC6 deficiency causing generalized arterial calcification of infancy
    heart failure (I50.-)
  • I16.1 Hypertensive emergency
    acute pulmonary edema (left and/or right ventricular failure) (J81.0, I50.-)

Clinical InformationClinical

  • Heart Failure

    a heterogeneous condition in which the heart is unable to pump out sufficient blood to meet the metabolic need of the body. heart failure can be caused by structural defects, functional abnormalities (ventricular dysfunction), or a sudden overload beyond its capacity. chronic heart failure is more common than acute heart failure which results from sudden insult to cardiac function, such as myocardial infarction.

Patient EducationClinical

Heart Failure

Heart failure means that your heart can't pump enough oxygen-rich blood to meet your body's needs. Heart failure doesn't mean that your heart has stopped or is about to stop beating. But without enough blood flow, your organs may not work well, which can cause serious problems.

The full article covers:

  • What is heart failure?
  • What causes heart failure?
  • Who is more likely to develop heart failure?
  • What are the symptoms of heart failure?
  • What other problems does heart failure cause?
  • How is heart failure diagnosed?
  • What are the treatments for heart failure?
  • Can heart failure 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 I50Overview

What is the ICD-10 code for heart failure?

I50 is the ICD-10-CM category for heart failure, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is I50 (Heart failure) a billable code?

No. This is a category header that groups the codes for heart failure, and headers cannot be submitted on claims. Claims for heart failure need a more specific code from this category, such as I50.1, I50.20, and I50.21.

What is coded first with I50?

The Code First note reads: heart failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.8); heart failure due to hypertension (I11.0); heart failure due to hypertension with chronic kidney disease (I13.-); heart failure following surgery (I97.13-); obstetric surgery and procedures (O75.4); and 1 more listed in the Instructional Notes section. When one of these applies, it is sequenced before I50.