2025 ICD-10-CM Diagnosis Code I27.89

by

Other specified pulmonary heart diseases

  • I27.89 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2025 edition of ICD-10-CM I27.89 became effective on October 1, 2024.
  • This is the American ICD-10-CM version of I27.89 – other international versions of ICD-10 I27.89 may differ.

The following code(s) above I27.89 contain annotation back-references

 that may be applicable to I27.89:

  • I00-I99  Diseases of the circulatory system

Clinical Information

  • A condition associated with ventricular septal defect and other congenital heart defects that allow the mixing of pulmonary and systemic circulation, increase blood flow into the lung, and subsequent responses to low oxygen in blood. This complex is characterized by progressive pulmonary hypertension; hypertrophy of the right ventricle; cyanosis; and erythrocytosis.
  • A syndrome characterized by the reversal of a septal defect-associated left-to-right shunt due to the resulting secondary pulmonary hypertension. The presence of the pulmonary hypertension causes increased pressure in the right heart chambers resulting in the reversal of the shunt into a right-to-left shunt. Signs and symptoms include cyanosis, pulmonary hypertension, heart failure, and high red blood cell count.

ICD-10-CM I27.89 is grouped within Diagnostic Related Group(s) (MS-DRG v42.0):

  • 314 Other circulatory system diagnoses with mcc
  • 315 Other circulatory system diagnoses with cc
  • 316 Other circulatory system diagnoses without cc/mcc

Convert I27.89 to ICD-9-CMCode History

  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
  • 2024 (effective 10/1/2023): No change
  • 2025 (effective 10/1/2024): No change

Diagnosis Index entries containing back-references to I27.89:

  • Disease, diseased – see also Syndrome
    • heart (organic) I51.9
      • pulmonary (chronic) I27.9
        • specified NEC I27.89
    • pulmonary – see also Disease, lung
      • heartI27.9
        • specified NEC I27.89
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