I31 ICD-10-CM Code: Other diseases of pericardium
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
I31Other diseases of pericardium
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where I31 sits
- 1
Chapter 9
Diseases of the circulatory system (I00-I99)
- 2
Section
Other forms of heart disease (I30-I5A)
- 3
Category I31
Other diseases of pericardium
- 4
Code I31
Other diseases of pericardium
More specific choices
Codes under I31
I31 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for I31.
Code first
No “code first” instruction is listed for I31.
Use additional code
No “use additional code” instruction is listed for I31.
Excludes1
Conditions that should not be reported together with this code.
- diseases of pericardium specified as rheumatic (I09.2)
- postcardiotomy syndrome (I97.0)
- traumatic injury to pericardium (S26.-)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for I31.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code I31 mean?
I31 is the FY 2027 U.S. ICD-10-CM code for “Other diseases of pericardium.”
Is I31 a billable or specific ICD-10-CM code?
No. I31 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is I31 located in ICD-10-CM?
I31 is listed in Chapter 9, Diseases of the circulatory system (I00-I99), within Other forms of heart disease (I30-I5A) (I30–I5A), under category I31, Other diseases of pericardium.
What coding notes are listed for I31?
No inclusion terms are listed for I31 in this reference record. No code-first instruction is listed. Excludes1 notes: diseases of pericardium specified as rheumatic (I09.2); postcardiotomy syndrome (I97.0); traumatic injury to pericardium (S26.-). No Excludes2 note is listed.
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