Pulmonary heart disease and diseases of pulmonary circulation (I26-I28)
chapter 9: Diseases of the Circulatory System
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Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers hypertension with heart and kidney disease, coronary artery disease with angina, perioperative stroke, cerebrovascular sequelae, and acute myocardial infarction types and timing.
- Hypertension (page 50)
- Atherosclerotic Coronary Artery Disease and Angina (page 52)
- Intraoperative and Postprocedural Cerebrovascular Accident (page 53)
- Sequelae of Cerebrovascular Disease (page 53)
- Acute myocardial infarction (AMI) (page 54)
All codes under I26-I28
I26-I28 can't be used on a claim. Pick a billable code below; grey headings group them.
- I26Pulmonary embolism
- I26.0Pulmonary embolism with acute cor pulmonale
- I26.01Septic pulmonary embolism with acute cor pulmonale
- I26.02Saddle embolus of pulmonary artery with acute cor pulmonale
- I26.03Cement embolism of pulmonary artery with acute cor pulmonale
- I26.04Fat embolism of pulmonary artery with acute cor pulmonale
- I26.09Other pulmonary embolism with acute cor pulmonale
- I26.9Pulmonary embolism without acute cor pulmonale
- I26.90Septic pulmonary embolism without acute cor pulmonale
- I26.92Saddle embolus of pulmonary artery without acute cor pulmonale
- I26.93Single subsegmental thrombotic pulmonary embolism without acute cor pulmonale
- I26.94Multiple subsegmental thrombotic pulmonary emboli without acute cor pulmonale
- I26.95Cement embolism of pulmonary artery without acute cor pulmonale
- I26.96Fat embolism of pulmonary artery without acute cor pulmonale
- I26.99Other pulmonary embolism without acute cor pulmonale
- I27Other pulmonary heart diseases
- I27.0Primary pulmonary hypertension
- I27.1Kyphoscoliotic heart disease
- I27.2Other secondary pulmonary hypertension
- I27.20Pulmonary hypertension, unspecified
- I27.21Secondary pulmonary arterial hypertension
- I27.22Pulmonary hypertension due to left heart disease
- I27.23Pulmonary hypertension due to lung diseases and hypoxia
- I27.24Chronic thromboembolic pulmonary hypertension
- I27.29Other secondary pulmonary hypertension
- I27.8Other specified pulmonary heart diseases
- I27.81Cor pulmonale (chronic)
- I27.82Chronic pulmonary embolism
- I27.83Eisenmenger's syndrome
- I27.84Fontan related circulation
- I27.840Fontan-associated liver disease [FALD]
- I27.841Fontan-associated lymphatic dysfunction
- I27.848Other Fontan-associated condition
- I27.849Fontan related circulation, unspecified
- I27.89Other specified pulmonary heart diseases
- I27.9Pulmonary heart disease, unspecified
- I28Other diseases of pulmonary vessels
- I28.0Arteriovenous fistula of pulmonary vessels
- I28.1Aneurysm of pulmonary artery
- I28.8Other diseases of pulmonary vessels
- I28.9Disease of pulmonary vessels, unspecified
I26-I28 MS-DRGs
This code does not group to an MS-DRG as a principal diagnosis.
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Pulmonary Embolism
A pulmonary embolism (PE) is a sudden blockage in a lung artery. It usually happens when a blood clot breaks loose and travels through the bloodstream to the lungs. PE is a serious condition that can cause:
Read more about pulmonary embolism on MedlinePlus