I27.23
BillablePulmonary hypertension due to lung diseases and hypoxia
HCC Category Mapping
V28HCC 226 — Heart Failure, Specified
0.000V24HCC 85 — Congestive Heart Failure
0.368ESRDHCC 85 — Congestive Heart Failure
0.000RxHCCHCC 184 — Pulmonary Hypertension, Other
0.000What This Code Means
High blood pressure in the lung arteries caused by chronic lung diseases or low oxygen levels in the blood.
Coding Tips
- •Document the specific lung disease (COPD, interstitial lung disease, sleep apnea, etc.) and code it separately
- •Verify that hypoxia is present; this code specifically indicates pulmonary hypertension secondary to lung disease and/or low oxygen
Clinical Significance
Pulmonary hypertension secondary to chronic lung disease or hypoxia reflects advanced cardiopulmonary disease. Patients with this condition have significant morbidity from both their lung disease and the resultant cardiac strain. This indicates high resource utilization including supplemental oxygen, pulmonary rehabilitation, and cardiac monitoring.
Documentation Requirements
- ✓Provider diagnosis of pulmonary hypertension due to lung disease or hypoxia
- ✓Specific underlying lung disease documented (Chronic Obstructive Pulmonary Disease, interstitial lung disease, sleep-disordered breathing)
- ✓Evidence of hypoxia or chronic hypoxemia
- ✓Echocardiographic or catheterization confirmation of elevated pulmonary pressures
- ✓Documentation linking the lung disease to the pulmonary hypertension
Code Also
Commonly Confused Codes
I27.22 — Pulmonary hypertension due to left heart disease; different mechanismI27.21 — Secondary pulmonary arterial hypertension; use for arterial causes like connective tissue diseaseI27.81 — Cor pulmonale (chronic); this is the result of pulmonary hypertension, not the same entityJ44.1 — Chronic Obstructive Pulmonary Disease with acute exacerbation; code the lung disease separately
Code Hierarchy
└I27Other pulmonary heart diseases└I27.2Other secondary pulmonary hypertension└I27.23Pulmonary hypertension due to lung diseases and hypoxia
└I27.23Pulmonary hypertension due to lung diseases and hypoxia