2025 ICD-10-CM Diagnosis Code I31.3

Pericardial effusion (noninflammatory)

  • I31.3 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2025 edition of ICD-10-CM I31.3 became effective on October 1, 2024.
  • This is the American ICD-10-CM version of I31.3 – other international versions of ICD-10 I31.3 may differ.

Type 1 Excludes

  • acute pericardial effusion (I30.9)

The following code(s) above I31.3 contain annotation back-references

 that may be applicable to I31.3:

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

Approximate Synonyms

  • Malignant pericardial effusion
  • Pericardial effusion
  • Pericardial effusion (fluid around heart)

Code 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): Deleted code
  • 2023 (effective 10/1/2022): New code
  • 2024 (effective 10/1/2023): No change
  • 2025 (effective 10/1/2024): No change
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