ICD-10-CM > I00-I99 > I26-I28 > I28 I28 Other diseases of pulmonary vessels Non-Billable/Non-Specific Codes I28.0Arteriovenous fistula of pulmonary vesselsI28.1Aneurysm of pulmonary arteryI28.8Other diseases of pulmonary vesselsI28.9Disease of pulmonary vessels, unspecified