I31.1 — Chronic constrictive pericarditis
I31.1 is a billable, specific ICD-10-CM code for chronic constrictive pericarditis. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Concretio cordis
- Pericardial calcification
Risk adjustment
I31.1 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
I31.1 is named in 22 Medicare coverage policies — 22 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
- A56425Billing and Coding: B-type Natriuretic Peptide (BNP) Testing
- A56451Billing and Coding: Cardiac Computed Tomography (CCT) and Coronary Computed Tomography Angiography (CCTA)
How I31.1 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 I31.1.
- Concretio cordis
- Gouley's syndrome(constrictive pericarditis)
- Pseudocirrhosis, liver, pericardial
- Calcification›pericardium
- Concato's disease›nontubercular
- Pericarditis›calcareous
- Pericarditis›constrictive(chronic)
- Polyserositis›due to pericarditis
- Polyserositis›pericardial
- Serositis, multiple›pericardial
- Syndrome›Gouley's
- Disease, diseased›Concato's›nontubercular
Related codes at this level
Codes that share I31. If I31.1 is not quite right, the correct code is usually one of these.
Questions about I31.1
- Is I31.1 a billable ICD-10-CM code?
- Yes. I31.1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does I31.1 sit in the tabular list?
- Diseases of the circulatory system (I00-I99), in the block Other forms of heart disease (I30-I5A).