AMA Criteria for Permanent Impairment Associated with Pulmonary Hypertension

Pulmonary hypertension can result in impairment which can be quantified based on criteria developed by the AMA.

Parameters:

(1) signs and symptoms of right heart failure

(2) pressure measurements by pulmonary artery pressure (PAP) or Doppler echocardiography

(3) functional class

Symptoms of RH Failure	Pressure Measurements	Functional Class	Impairment of the Whole Person
none	PAP 40 – 50 mm Hg; peak tricuspid velocity 3.0 – 3.5 m/second (by Doppler)	Class 1	0 - 9%
none	PAP 51 – 75 mm Hg	Class 1	10 – 29%
present	PAP > 75 mm Hg	Class 2	30 – 49%
severe	PAP > 75 mm Hg	Class 3 or 4	50 – 100%

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