MCMCB Pro
I31.2

I31.2Hemopericardium, not elsewhere classified

Billable / specific codeICD-10-CM

I31.2 is a billable, specific ICD-10-CM code for hemopericardium, not elsewhere classified. It is valid for submission on a claim.

Excludes1 — never code together

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

  • hemopericardium as current complication following acute myocardial infarction (I23.0)
  • malignant pericardial effusion (I31.31)

Other codes that can never be billed with I31.2

These codes carry an Excludes1 note pointing at I31.2. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading I31.2 alone.

  • I23.0Hemopericardium as current complication following acute myocardial infarction

Risk adjustment

I31.2 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

I31.2 is named in 18 Medicare coverage policies 18 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
  • A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
  • A56451Billing and Coding: Cardiac Computed Tomography (CCT) and Coronary Computed Tomography Angiography (CCTA)
  • A56500Billing and Coding: Cardiac Catheterization and Coronary Angiography

How I31.2 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to I31.2.

  • Hemopericardium
  • Pneumohemopericardium
  • Hemorrhage, hemorrhagicpericardium, pericarditis

Related codes at this level

Codes that share I31. If I31.2 is not quite right, the correct code is usually one of these.

Questions about I31.2

Is I31.2 a billable ICD-10-CM code?
Yes. I31.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does I31.2 sit in the tabular list?
Diseases of the circulatory system (I00-I99), in the block Other forms of heart disease (I30-I5A).
What cannot be coded together with I31.2?
I31.2 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.
ICD-10-CMFY2026-Apr· effective April 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.