| I27 | Other pulmonary heart diseases | NON-BILLABLE CODE |
| I27.0 | Primary pulmonary hypertension | BILLABLE CODE |
| I27.1 | Kyphoscoliotic heart disease | BILLABLE CODE |
| I27.2 | Other secondary pulmonary hypertension | NON-BILLABLE CODE |
| I27.21 | Secondary pulmonary arterial hypertension | BILLABLE CODE |
| I27.22 | Pulmonary hypertension due to left heart disease | BILLABLE CODE |
| I27.23 | Pulmonary hypertension due to lung diseases and hypoxia | BILLABLE CODE |
| I27.24 | Chronic thromboembolic pulmonary hypertension | BILLABLE CODE |
| I27.29 | Other secondary pulmonary hypertension | BILLABLE CODE |
| I27.8 | Other specified pulmonary heart diseases | NON-BILLABLE CODE |
| I27.81 | Cor pulmonale (chronic) | BILLABLE CODE |
| I27.82 | Chronic pulmonary embolism | BILLABLE CODE |
| I27.83 | Eisenmenger's syndrome | BILLABLE CODE |
| I27.89 | Other specified pulmonary heart diseases | BILLABLE CODE |
| I27.9 | Pulmonary heart disease, unspecified | BILLABLE CODE |
