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Health Dictionary

Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.

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New york heart association functional classification

Introduction

Overview

Overview

The New York Heart Association (NYHA) Functional Classification provides a simple way of classifying the extent of heart failure. It places patients in one of four categories based on how much they are limited during physical activity.

New York Heart Association Functional Classification (NYHA)

New York Heart Association Functional Classification (NYHA)

Class New York Heart Association Functional Classification
Class I No limitation:
  • Heart disease exists with no symptoms or limitation of physical activity.
Class II Minimal limitation:
  • There is slight limitation of physical activity.
Class III Marked limitation:
  • Patients have marked limitation of physical activity.
  • Comfortable at rest, but less than ordinary activity, such as walking 20–100 m, causes fatigue, palpitation, or dyspnea.
Class IV Extreme limitation:
  • Severe limitation; unable to carry out any physical activity without discomfort.
  • Angina and/or symptoms of cardiac insufficiency may be present at rest.
  • If any physical activity is undertaken, discomfort is increased.
  • Usually self-confined to bed or a chair.
See also

See also

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]