---
title: "ICD-10-CM I50.1: Left ventricular failure, unspecified | BillingBrief"
description: "ICD-10-CM code I50.1: Left ventricular failure, unspecified. Category, related codes, and the official source, in plain English."
canonical: "https://billingbrief.com/icd10/i50.1/"
language: "en"
---

# I50.1 Left ventricular failure, unspecified

ICD-10-CM · [CMS code reference](#source)

**Official ICD-10-CM description:** Left ventricular failure, unspecified

## Coding notes

From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.

### Also covers

-   Cardiac asthma
-   Edema of lung with heart disease NOS
-   Edema of lung with heart failure
-   Left heart failure
-   Pulmonary edema with heart disease NOS
-   Pulmonary edema with heart failure

### Excludes1

Not coded together with this code. The exception is when the two conditions are unrelated to each other.

-   edema of lung without heart disease or heart failure (J81.-)
-   pulmonary edema without heart disease or failure (J81.-)

### Excludes2

Not part of this code, but both can be coded when both are documented.

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

### Code first

Code the underlying condition first, then this code.

-   heart failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.8)
-   heart failure due to hypertension ([I11.0](https://billingbrief.com/icd10/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)

## Related codes

-   [`I50.20` Unspecified systolic (congestive) heart failure ICD-10-CM](https://billingbrief.com/icd10/i50.20/)
-   [`I50.21` Acute systolic (congestive) heart failure ICD-10-CM](https://billingbrief.com/icd10/i50.21/)
-   [`I50.22` Chronic systolic (congestive) heart failure ICD-10-CM](https://billingbrief.com/icd10/i50.22/)
-   [`I50.23` Acute on chronic systolic (congestive) heart failure ICD-10-CM](https://billingbrief.com/icd10/i50.23/)
-   [`I50.30` Unspecified diastolic (congestive) heart failure ICD-10-CM](https://billingbrief.com/icd10/i50.30/)
-   [`I50.31` Acute diastolic (congestive) heart failure ICD-10-CM](https://billingbrief.com/icd10/i50.31/)
-   [`I50.32` Chronic diastolic (congestive) heart failure ICD-10-CM](https://billingbrief.com/icd10/i50.32/)
-   [`I50.33` Acute on chronic diastolic (congestive) heart failure ICD-10-CM](https://billingbrief.com/icd10/i50.33/)

## Common questions

### Is I50.1 a billable code?

Yes. I50.1 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.

## From the source

Official description from [CMS](https://www.cms.gov/medicare/coding-billing/icd-10-codes).
ICD-10-CM FY2027 (effective October 1, 2026).

Code set

ICD-10-CM

Category

I50 Heart failure

Chapter

Diseases of the circulatory system

Billable

Yes

Educational reference only. Not medical, legal, or billing advice. Always check the current official code set and payer policy before you bill. [About BillingBrief and our sources](https://billingbrief.com/about/).