ICD-10-CM category
I27: Other pulmonary heart diseases
Codes under I27 (Other pulmonary heart diseases). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| I27.0 | Primary pulmonary hypertension | ✓ |
| I27.1 | Kyphoscoliotic heart disease | ✓ |
| I27.2 | Other secondary pulmonary hypertension | — |
| I27.8 | Other specified pulmonary heart diseases | — |
| I27.9 | Pulmonary heart disease, unspecified | ✓ |
| I27.20 | Pulmonary hypertension, unspecified | ✓ |
| I27.21 | Secondary pulmonary arterial hypertension | ✓ |
| I27.22 | Pulmonary hypertension due to left heart disease | ✓ |
| I27.23 | Pulmonary hypertension due to lung diseases and hypoxia | ✓ |
| I27.24 | Chronic thromboembolic pulmonary hypertension | ✓ |
| I27.29 | Other secondary pulmonary hypertension | ✓ |
| I27.81 | Cor pulmonale (chronic) | ✓ |
| I27.82 | Chronic pulmonary embolism | ✓ |
| I27.83 | Eisenmenger's syndrome | ✓ |
| I27.84 | Fontan related circulation | — |
| I27.89 | Other specified pulmonary heart diseases | ✓ |
| I27.840 | Fontan-associated liver disease [FALD] | ✓ |
| I27.841 | Fontan-associated lymphatic dysfunction | ✓ |
| I27.848 | Other Fontan-associated condition | ✓ |
| I27.849 | Fontan related circulation, unspecified | ✓ |
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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