| Recommended Mapping (based on statistical analysis) |
| Source ICD-9 | Mapping Type | Target ICD-10 |
| 4168 (Diagnosis) - Chr pulmon heart dis NEC (Other chronic pulmonary heart diseases) | Single To Single | I2720 (Diagnosis) - Pulmonary hypertension, unspecified |
| CMS/CDC General Equivalence Mappings |
| 4168 (Diagnosis) - Chr pulmon heart dis NEC (Other chronic pulmonary heart diseases) | Single To Single | Alternative #1: I2720 (Diagnosis) - Pulmonary hypertension, unspecified |
Single To Single | Alternative #2: I2721 (Diagnosis) - Secondary pulmonary arterial hypertension | Single To Single | Alternative #3: I2722 (Diagnosis) - Pulmonary hypertension due to left heart disease | Single To Single | Alternative #4: I2723 (Diagnosis) - Pulmonary hypertension due to lung diseases and hypoxia | Single To Single | Alternative #5: I2724 (Diagnosis) - Chronic thromboembolic pulmonary hypertension | Single To Single | Alternative #6: I2729 (Diagnosis) - Other secondary pulmonary hypertension | Single To Single | Alternative #7: I2789 (Diagnosis) - Other specified pulmonary heart diseases |