I27.21 Billable Code
Secondary pulmonary arterial hypertension
Effective From: 10/01/2017
Chapter Classification
Chapter 9
Diseases of the circulatory system (I00-I99)
Section Detail
I26-I28
Pulmonary heart disease and diseases of pulmonary circulation (I26-I28)
Code Hierarchy
This code is a child of I27.2.
Coding Guidelines & Notes
codeAlso
- associated conditions if applicable, or adverse effects of drugs or toxins, such as:
- adverse effect of appetite depressants (T50.5X5)
- congenital heart disease (Q20-Q28)
- human immunodeficiency virus [HIV] disease (B20)
- polymyositis (M33.2-)
- portal hypertension (K76.6)
- rheumatoid arthritis (M05.-)
- schistosomiasis (B65.-)
- Sjögren syndrome (M35.0-)
- systemic sclerosis (M34.-)
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