I50
Non-Billable

Heart failure

Non-Billable / Non-Specific Code

What is Heart failure?

ICD-10-CM I50 is the diagnosis code for Heart failure. This code falls under the section "Other forms of heart disease" within Chapter 9 — Diseases of the circulatory system (I00-I99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

â„šī¸ Excludes2

Coding Guidelines for I50

â„šī¸ Type 2 Excludes (Code separately if applicable)

The following conditions are not included in I50. If the patient has both, code each condition separately:

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

ICD-10-CM Code Hierarchy

Understanding where I50 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 6 entries
I50.1Left ventricular failure, unspecifiedBillableI50.2Systolic (congestive) heart failureNon-BillableI50.20Unspecified systolic (congestive) heart failureBillableI50.21Acute systolic (congestive) heart failureBillableI50.22Chronic systolic (congestive) heart failureBillableI50.23Acute on chronic systolic (congestive) heart failureBillableI50.3Diastolic (congestive) heart failureNon-BillableI50.30Unspecified diastolic (congestive) heart failureBillableI50.31Acute diastolic (congestive) heart failureBillableI50.32Chronic diastolic (congestive) heart failureBillableI50.33Acute on chronic diastolic (congestive) heart failureBillableI50.4Combined systolic (congestive) and diastolic (congestive) heart failureNon-BillableI50.40Unspecified combined systolic (congestive) and diastolic (congestive) heart failureBillableI50.41Acute combined systolic (congestive) and diastolic (congestive) heart failureBillableI50.42Chronic combined systolic (congestive) and diastolic (congestive) heart failureBillableI50.43Acute on chronic combined systolic (congestive) and diastolic (congestive) heart failureBillableI50.8Other heart failureNon-BillableI50.81Right heart failureNon-BillableI50.810Right heart failure, unspecifiedBillableI50.811Acute right heart failureBillableI50.812Chronic right heart failureBillableI50.813Acute on chronic right heart failureBillableI50.814Right heart failure due to left heart failureBillableI50.82Biventricular heart failureBillableI50.83High output heart failureBillableI50.84End stage heart failureBillableI50.89Other heart failureBillableI50.9Heart failure, unspecifiedBillable
Related Codes

Frequently Asked Questions

Is I50 a billable ICD-10-CM code?

No, I50 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does I50 mean?

I50 is the ICD-10-CM diagnosis code for "Heart failure". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is I50 in?

I50 is located in Section I30-I5A — "Other forms of heart disease" within Chapter 9 of the ICD-10-CM Tabular List.

What are the sub-codes of I50?

I50 has 6 sub-code(s) that provide more specific detail: I50.1, I50.2, I50.3, I50.4, I50.8 and more.

When should I use I50?

Use I50 when the patients documented diagnosis matches "Heart failure" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Heart failure?

The ICD-10-CM code for Heart failure is I50.

Can I50 be used for primary diagnosis?

No, I50 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is I50 in?

I50 is in Chapter 9 of the ICD-10-CM Tabular List.

Is I50 valid for 2026?

Yes, I50 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousI49.9Cardiac arrhythmia, unspecifiedNext →I50.1Left ventricular failure, unspecified
Code Details
I50
Heart failure
Non-Billable / Non-Specific Code
9 — Diseases of the circulatory system (I00-I99)
I30-I5A — Other forms of heart disease
2026 ICD-10-CM