Idiopathic pulmonary artery dilatation

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Idiopathic pulmonary artery dilatation

ORPHA:1676Disease

What it is

Idiopathic pulmonary artery dilatation is a rare developmental defect during embryogenesis characterized by the dilatation of the main pulmonary artery, with or without dilatation of the right and left pulmonary artery branches, and not attributed to any other cardiac, pulmonary and/or arterial wall disease. It may present with exertional dyspnea, fatigue, cough, hemoptysis, palpitation and chest pain, but may also be asymptomatic. In serious cases, trachea constriction due to postural changes may lead to attacks of cyanosis with severe dyspnea. Sudden cardiac death has been reported in some cases.

Key facts

Classified as
Disease

ICD-10 codes

I28.8filed under a broader ICD-10 category — shared with 1 other rare disease

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Related health topics

Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.

Cross-references

GARD 6757MONDO 0015664UMLS C1384816

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

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