2025
ICD-10-CM
Diagnosis
Code

I50.9 Heart failure, unspecified

  • Billable
  • 2016–2025

I50.9 is a billable/specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Heart failure, unspecified.

Inclusion term

  • Cardiac, heart or myocardial failure NOS

  • Congestive heart disease

  • Congestive heart failure NOS

Type 2 excludes

  • Fluid overload unrelated to congestive heart failure (E87.70)

Versions

  1. 2025

    No changes

  2. 2024

    No changes

  3. 2023

    No changes

  4. 2022

    No changes

  5. 2021

    No changes

  6. 2020

    Code changed

    • Type 2 excludes

        • fluid overload (E87.70)
        • fluid overload unrelated to congestive heart failure (E87.70)

  7. 2019

    No changes

  8. 2018

    Code changed

    • Inclusion term

        • Biventricular (heart) failure NOS
        • Cardiac, heart or myocardial failure NOS
        • Congestive heart disease
        • Congestive heart failure NOS
        • Right ventricular failure (secondary to left heart failure)
        • Cardiac, heart or myocardial failure NOS
        • Congestive heart disease
        • Congestive heart failure NOS

  9. 2017

    Code changed

    • Type 1 excludes

        • fluid overload (E87.70)

    • Type 2 excludes

        • fluid overload (E87.70)

  10. 2016

    New code