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I27.23 Pulmonary hypertension due to lung diseases and hypoxia
BackI27Other pulmonary heart diseasesCategory5 →I27.0Primary pulmonary hypertensionCategoryI27.1Kyphoscoliotic heart diseaseCategoryI27.2Other secondary pulmonary hypertensionCategory6 →I27.20Pulmonary hypertension, unspecifiedCategoryI27.21Secondary pulmonary arterial hypertensionCategoryI27.22Pulmonary hypertension due to left heart diseaseCategoryI27.23Pulmonary hypertension due to lung diseases and hypoxiaCategoryI27.24Chronic thromboembolic pulmonary hypertensionCategoryI27.29Other secondary pulmonary hypertensionCategoryI27.8Other specified pulmonary heart diseasesCategory5 →I27.81Cor pulmonale (chronic)CategoryI27.82Chronic pulmonary embolismCategoryI27.83Eisenmenger's syndromeCategoryI27.84Fontan related circulationCategory4 →I27.840Fontan-associated liver disease [FALD]CategoryI27.841Fontan-associated lymphatic dysfunctionCategoryI27.848Other Fontan-associated conditionCategoryI27.849Fontan related circulation, unspecifiedCategoryI27.89Other specified pulmonary heart diseasesCategoryI27.9Pulmonary heart disease, unspecifiedCategory
CategoryCODABLE
I27.23
Pulmonary hypertension due to lung diseases and hypoxia
EXAMPLES
Group 3 pulmonary hypertension
CODING RULE
Code also: associated lung disease, if known, such as:
bronchiectasis (J47.-)
cystic fibrosis with pulmonary manifestations (E84.0)
interstitial lung disease (J84.-)
pleural effusion (J90)
sleep apnea (G47.3-)
bronchiectasis (J47.-)
cystic fibrosis with pulmonary manifestations (E84.0)
interstitial lung disease (J84.-)
pleural effusion (J90)
sleep apnea (G47.3-)
- Chapter
- IX · Diseases of the circulatory system
- Section
- I26-I28
- Valid from
Source
CMS ICD-10-CM Tabular List, edition FY2026.