ICD-10 Code: I27.21 – Secondary pulmonary arterial hypertension

ICD-10 code I27.21 corresponds to Secondary pulmonary arterial hypertension. This code is classified under the chapter I27 Other pulmonary heart diseases, which is part of the I26-I28: Pulmonary heart disease and diseases of pulmonary circulation category.

The parent chapter is Diseases of the circulatory system.