2025 ICD-10-CM Diagnosis Code I31.4

Cardiac tamponade

  • I31.4 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 I31.4 became effective on October 1, 2024.
  • This is the American ICD-10-CM version of I31.4 – other international versions of ICD-10 I31.4 may differ.

Code First

  • underlying cause

The following code(s) above I31.4 contain annotation back-references

 that may be applicable to I31.4:

  • I00-I99  Diseases of the circulatory system
  • I31  Other diseases of pericardium

Clinical Information

  • A disorder characterized by an increase in intrapericardial pressure due to the collection of blood or fluid in the pericardium.
  • Acute compression of the heart caused by increased intrapericardial pressure due to the collection of blood or fluid in the pericardium from rupture of the heart, penetrating trauma, or progressive effusion.
  • Compression of heart from pericardial effusion or hemopericardium.
  • Compression of the heart by accumulated fluid (pericardial effusion) or blood (hemopericardium) in the pericardium surrounding the heart. The affected cardiac functions and cardiac output can range from minimal to total hemodynamic collapse.

ICD-10-CM I31.4 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 I31.4 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 I31.4:

  • Cardiac – see also condition
    • tamponade I31.4
  • Tamponade, heart I31.4
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