A condition affecting the blood vessels in the lungs that may cause breathing problems and reduced oxygen levels.
For the 100% level, medical records documenting a diagnosis of primary pulmonary hypertension, or imaging and clinical findings showing right ventricular hypertrophy or cor pulmonale, are central. Right heart catheterization results, echocardiograms, and CT pulmonary angiography establishing elevated pulmonary arterial pressures or structural heart changes directly support this level. For the 60% level, records showing a diagnosis of chronic pulmonary thromboembolism along with current anticoagulant prescriptions, or operative and post-surgical records confirming inferior vena cava surgery without pulmonary hypertension or right ventricular dysfunction, are relevant. For the 30% level, records confirming that an acute pulmonary embolism has resolved but that you continue to have symptoms — such as shortness of breath, fatigue, or reduced exercise tolerance — support that rating. Statements from you describing how ongoing symptoms affect your work and daily activities can help document this. For the 0% level, records confirming resolution of thromboembolism and absence of symptoms reflect that criteria.
Conditions that are often caused or made worse by this one. If you have any of these, they may be claimable as secondary service connection.
