I27.21 Secondary pulmonary arterial hypertension
Instructional Notes:
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I27.21
Description: 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:', '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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I27.2
Description: Other secondary pulmonary hypertension
Exclude1:
- Eisenmenger's syndrome (I27.83)
Code Also: ['associated underlying condition']
↓
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I27
Description: Other pulmonary heart diseases
↓
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I26-I28
Description: Pulmonary heart disease and diseases of pulmonary circulation (I26-I28)
↓
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I00-I99
Description: Diseases of the circulatory system
Exclude2:
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)