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I31

I31: Other diseases of pericardium

Non-billable headerICD-10-CM

I31 is a non-billable header ICD-10-CM code for other diseases of pericardium. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • diseases of pericardium specified as rheumatic (I09.2)
  • postcardiotomy syndrome (I97.0)
  • traumatic injury to pericardium (S26.-)

Other codes that can never be billed with I31

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • I09.2Chronic rheumatic pericarditis
  • I23.0Hemopericardium as current complication following acute myocardial infarction
  • I31.2Hemopericardium, not elsewhere classified

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead I31

7 child codes. Green means billable.

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.