I27.21 - Secondary pulmonary arterial hypertension

  • Applicable to Secondary pulmonary arterial hypertension
  • The 2025 edition of ICD10-CM I27.21 became effective on October 1, 2024.
  • This is the American ICD10-CM version of I27.21 - other international versions of ICD10 I27.21 may differ.
  • I27.21 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

 Inclusion Term

  • (Associated) (drug-induced) (toxin-induced) pulmonary arterial hypertension NOS
  • (Associated) (drug-induced) (toxin-induced) (secondary) group 1 pulmonary hypertension

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.-)

The following codes above I27.21 contain annotation back-references that may be applicable to I27.21:

Chapter: I00-I99 Diseases of the circulatory system

Section: I26-I28 Pulmonary heart disease and diseases of pulmonary circulation

Category: I27 Other pulmonary heart diseases

   
Billable/Specific Code

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