I27.21 is a billable/specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Secondary pulmonary arterial hypertension.
Inclusion term
Associated) (drug-induced) (toxin-induced) pulmonary arterial hypertension NOS
(Associated) (drug-induced) (toxin-induced) (secondary) group 1 pulmonary hypertension
Code also
Associated conditions if applicable, or adverse effects of drugs or toxins, such as:
Versions
2025
Code changed
Code also
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.-)
- 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.-)
- Sju00f6gren syndrome (M35.0-)
- systemic sclerosis (M34.-)
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
New code