ICD-10-CM > I00-I99 > I26-I28 > I27 I27 Other pulmonary heart diseases Non-Billable/Non-Specific Codes I27.0Primary pulmonary hypertensionI27.1Kyphoscoliotic heart diseaseI27.2Other secondary pulmonary hypertensionI27.20Pulmonary hypertension, unspecifiedI27.21Secondary pulmonary arterial hypertensionI27.22Pulmonary hypertension due to left heart diseaseI27.23Pulmonary hypertension due to lung diseases and hypoxiaI27.24Chronic thromboembolic pulmonary hypertensionI27.29Other secondary pulmonary hypertensionI27.8Other specified pulmonary heart diseasesI27.81Cor pulmonale (chronic)I27.82Chronic pulmonary embolismI27.83Eisenmenger's syndromeI27.84Fontan related circulationI27.840Fontan-associated liver disease [FALD]I27.841Fontan-associated lymphatic dysfunctionI27.848Other Fontan-associated conditionI27.849Fontan related circulation, unspecifiedI27.89Other specified pulmonary heart diseasesI27.9Pulmonary heart disease, unspecified