2021 ICD-10-CM Diagnosis Code I31

Other diseases of pericardium

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • I31 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2021 edition of ICD-10-CM I31 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of I31 - other international versions of ICD-10 I31 may differ.
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as I31. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • diseases of pericardium specified as rheumatic (
    ICD-10-CM Diagnosis Code I09.2

    Chronic rheumatic pericarditis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Adherent pericardium, rheumatic
    • Chronic rheumatic mediastinopericarditis
    • Chronic rheumatic myopericarditis
    Type 1 Excludes
    • chronic pericarditis not specified as rheumatic (I31.-)
    I09.2
    )
  • postcardiotomy syndrome (
    ICD-10-CM Diagnosis Code I97.0

    Postcardiotomy syndrome

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    I97.0
    )
  • traumatic injury to pericardium (
    ICD-10-CM Diagnosis Code S26
    • S26 Injury of heart
      • S26.0 Injury of heart with hemopericardium
        • S26.00 Unspecified injury of heart with hemopericard...
          • S26.00XA Unspecified injury of heart with hemopericard...
          • S26.00XD Unspecified injury of heart with hemopericard...
          • S26.00XS Unspecified injury of heart with hemopericard...
        • S26.01 Contusion of heart with hemopericardium
          • S26.01XA Contusion of heart with hemopericardium, init...
          • S26.01XD Contusion of heart with hemopericardium, subs...
          • S26.01XS Contusion of heart with hemopericardium, sequ...
        • S26.02 Laceration of heart with hemopericardium
          • S26.020 Mild laceration of heart with hemopericardium...
            • S26.020A Mild laceration of heart with hemopericardium...
            • S26.020D Mild laceration of heart with hemopericardium...
            • S26.020S Mild laceration of heart with hemopericardium...
          • S26.021 Moderate laceration of heart with hemopericar...
            • S26.021A Moderate laceration of heart with hemopericar...
            • S26.021D Moderate laceration of heart with hemopericar...
            • S26.021S Moderate laceration of heart with hemopericar...
          • S26.022 Major laceration of heart with hemopericardiu...
            • S26.022A Major laceration of heart with hemopericardiu...
            • S26.022D Major laceration of heart with hemopericardiu...
            • S26.022S Major laceration of heart with hemopericardiu...
        • S26.09 Other injury of heart with hemopericardium
          • S26.09XA Other injury of heart with hemopericardium, i...
          • S26.09XD Other injury of heart with hemopericardium, s...
          • S26.09XS Other injury of heart with hemopericardium, s...
      • S26.1 Injury of heart without hemopericardium
        • S26.10 Unspecified injury of heart without hemoperic...
          • S26.10XA Unspecified injury of heart without hemoperic...
          • S26.10XD Unspecified injury of heart without hemoperic...
          • S26.10XS Unspecified injury of heart without hemoperic...
        • S26.11 Contusion of heart without hemopericardium
          • S26.11XA Contusion of heart without hemopericardium, i...
          • S26.11XD Contusion of heart without hemopericardium, s...
          • S26.11XS Contusion of heart without hemopericardium, s...
        • S26.12 Laceration of heart without hemopericardium
          • S26.12XA Laceration of heart without hemopericardium, ...
          • S26.12XD Laceration of heart without hemopericardium, ...
          • S26.12XS Laceration of heart without hemopericardium, ...
        • S26.19 Other injury of heart without hemopericardium...
          • S26.19XA Other injury of heart without hemopericardium...
          • S26.19XD Other injury of heart without hemopericardium...
          • S26.19XS Other injury of heart without hemopericardium...
      • S26.9 Injury of heart, unspecified with or without ...
        • S26.90 Unspecified injury of heart, unspecified with...
          • S26.90XA Unspecified injury of heart, unspecified with...
          • S26.90XD Unspecified injury of heart, unspecified with...
          • S26.90XS Unspecified injury of heart, unspecified with...
        • S26.91 Contusion of heart, unspecified with or witho...
          • S26.91XA Contusion of heart, unspecified with or witho...
          • S26.91XD Contusion of heart, unspecified with or witho...
          • S26.91XS Contusion of heart, unspecified with or witho...
        • S26.92 Laceration of heart, unspecified with or with...
          • S26.92XA Laceration of heart, unspecified with or with...
          • S26.92XD Laceration of heart, unspecified with or with...
          • S26.92XS Laceration of heart, unspecified with or with...
        • S26.99 Other injury of heart, unspecified with or wi...
          • S26.99XA Other injury of heart, unspecified with or wi...
          • S26.99XD Other injury of heart, unspecified with or wi...
          • S26.99XS Other injury of heart, unspecified with or wi...
    S26.-
    )
The following code(s) above I31 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to I31:
  • I00-I99
    2021 ICD-10-CM Range I00-I99

    Diseases of the circulatory system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    • systemic connective tissue disorders (M30-M36)
    • transient cerebral ischemic attacks and related syndromes (G45.-)
    Diseases of the circulatory system
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
Code annotations containing back-references to I31:
  • Type 1 Excludes: I09.2
    ICD-10-CM Diagnosis Code I09.2

    Chronic rheumatic pericarditis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Adherent pericardium, rheumatic
    • Chronic rheumatic mediastinopericarditis
    • Chronic rheumatic myopericarditis
    Type 1 Excludes
    • chronic pericarditis not specified as rheumatic (I31.-)
ICD-10-CM Codes Adjacent To I31
I28 Other diseases of pulmonary vessels
I28.0 Arteriovenous fistula of pulmonary vessels
I28.1 Aneurysm of pulmonary artery
I28.8 Other diseases of pulmonary vessels
I28.9 Disease of pulmonary vessels, unspecified
I30 Acute pericarditis
I30.0 Acute nonspecific idiopathic pericarditis
I30.1 Infective pericarditis
I30.8 Other forms of acute pericarditis
I30.9 Acute pericarditis, unspecified
I31 Other diseases of pericardium
I31.0 Chronic adhesive pericarditis
I31.1 Chronic constrictive pericarditis
I31.2 Hemopericardium, not elsewhere classified
I31.3 Pericardial effusion (noninflammatory)
I31.4 Cardiac tamponade
I31.8 Other specified diseases of pericardium
I31.9 Disease of pericardium, unspecified
I32 Pericarditis in diseases classified elsewhere
I33 Acute and subacute endocarditis
I33.0 Acute and subacute infective endocarditis

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.