I27.21
BillableSecondary pulmonary arterial hypertension
I27.21 is the ICD-10-CM code for Secondary pulmonary arterial hypertension. It is a billable, specific code valid for reimbursement.
I00-I99 Diseases of the circulatory system
Includes
- •(Associated) (drug-induced) (toxin-induced) pulmonary arterial hypertension NOS
- •(Associated) (drug-induced) (toxin-induced) (secondary) group 1 pulmonary hypertension
Notes
- •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.-)
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
Look up another ICD-10 code or condition