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NYHA Functional Classification: Class I-IV

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

sections/codes in this section ()

• NYHA Class I - No limitation of physical activity  (XS3A)
• NYHA Class II - Slight limitation of physical activity  (XS6B)
• NYHA Class III - Marked limitation of physical activity  (XS9T)
• NYHA Class IV - Unable to carry on any physical activity without discomfort  (XS9F)

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