2024 ICD-10-CM Diagnosis Code I31.9

Disease of pericardium, unspecified

ICD-10-CM Code:
I31.9
ICD-10 Code for:
Disease of pericardium, unspecified
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

Code Classification

  • Diseases of the circulatory system
    (I00–I99)
    • Other forms of heart disease
      (I30-I5A)
      • Other diseases of pericardium
        (I31)

I31.9 is a billable diagnosis code used to specify a medical diagnosis of disease of pericardium, unspecified. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Unspecified diagnosis codes like I31.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Camptodactyly, arthropathy, coxa-vara, pericarditis syndrome
  • Chest pain due to pericarditis
  • Chronic pericarditis
  • Disorder of connective tissue co-occurrent and due to systemic disease
  • Disorder of pericardium
  • Drug-induced pericarditis
  • Drug-induced pericarditis
  • Drug-induced pericarditis
  • Familial pericarditis
  • Fixed flexion deformity finger
  • Hydralazine-induced pericarditis
  • Myopericarditis
  • Non-traumatic pneumopericardium
  • Pericardial anomaly
  • Pericardial defect
  • Pericarditis
  • Pericarditis caused by toxin
  • Pericarditis due to metabolic disease
  • Pericarditis secondary to collagen vascular disease
  • Pericarditis secondary to penetrating trauma
  • Pericarditis secondary to scleroderma
  • Pneumopericardium
  • Post-cardiac injury syndrome
  • Post-cardiac injury syndrome
  • Post-radiation pericarditis
  • Post-traumatic pericarditis
  • Post-traumatic pericarditis
  • Procainamide-induced pericarditis
  • Subacute pericarditis
  • Wound inflammation

Clinical Classification

Clinical Information

  • Pericarditis

    inflammation of the pericardium from various origins, such as infection, neoplasm, autoimmune process, injuries, or drug-induced. pericarditis usually leads to pericardial effusion, or constrictive pericarditis.
  • Pericarditis, Constrictive

    inflammation of the pericardium that is characterized by the fibrous scarring and adhesion of both serous layers, the visceral pericardium and the parietal pericardium leading to the loss of pericardial cavity. the thickened pericardium severely restricts cardiac filling. clinical signs include fatigue, muscle wasting, and weight loss.
  • Pericarditis, Tuberculous

    inflammation of the sac surrounding the heart (pericardium) due to mycobacterium tuberculosis infection. pericarditis can lead to swelling (pericardial effusion), compression of the heart (cardiac tamponade), and preventing normal beating of the heart.
  • Pneumopericardium

    presence of air or gas in the space between the heart and the pericardium. the degree of respiratory distress depends on the amount of trapped air and circulation blocked in the systemic and pulmonary veins.
  • Pericardium

    a conical fibro-serous sac surrounding the heart and the roots of the great vessels (aorta; venae cavae; pulmonary artery). pericardium consists of two sacs: the outer fibrous pericardium and the inner serous pericardium. the latter consists of an outer parietal layer facing the fibrous pericardium, and an inner visceral layer (epicardium) resting next to the heart, and a pericardial cavity between these two layers.
  • Acute Pericarditis

    acute inflammation of the pericardium.
  • Acute Pericarditis Related to COVID-19|Acute pericarditis

    acute pericarditis in a patient with probable or confirmed acute covid-19.
  • Acute Rheumatic Pericarditis

    inflammation of the pericardium in acute rheumatic heart disease.
  • Bacterial Pericarditis

    pericarditis that is caused by an infection with a bacterial agent.
  • Constrictive Pericarditis|Constrictive pericarditis

    a heart disorder in which the pericardial sac becomes thickened and fibrotic, tightening the myocardium and impeding the normal myocardial function.
  • Fungal Pericarditis

    pericarditis that is caused by an infection with a fungal agent.
  • Grade 1 Pericarditis, CTCAE|Grade 1 Pericarditis|Grade 1 Pericarditis

    asymptomatic, ecg or physical findings (e.g., rub) consistent with pericarditis
  • Grade 2 Pericarditis, CTCAE|Grade 2 Pericarditis|Grade 2 Pericarditis

    symptomatic pericarditis (e.g., chest pain)
  • Grade 3 Pericarditis, CTCAE|Grade 3 Pericarditis|Grade 3 Pericarditis

    pericarditis with physiologic consequences (e.g., pericardial constriction)
  • Grade 4 Pericarditis, CTCAE|Grade 4 Pericarditis|Grade 4 Pericarditis

    life-threatening consequences; urgent intervention indicated
  • Grade 5 Pericarditis, CTCAE|Grade 5 Pericarditis|Grade 5 Pericarditis

    death
  • Malignant Pericarditis|Pericarditis, Malignant

    pericarditis caused by the infiltration of the pericardium by a malignant neoplasm. the diagnosis is based on the cytological examination of pericardial fluid or the histologic examination of pericardial tissue.
  • Pericarditis

    an inflammatory process affecting the pericardium.
  • Pericarditis Associated with Post-Acute Sequelae of SARS-CoV-2 Infection|PASC Pericarditis|PASC pericarditis|Post-Acute Sequelae of COVID-19 Pericarditis

    pericarditis that started during probable or confirmed acute covid-19 and persisted beyond four weeks after the initial diagnosis of covid-19.
  • Pericarditis in Systemic Lupus Erythematosus|Pericarditis in systemic lupus erythematosus

    evidence of pericarditis in systemic lupus erythematosus.
  • Pericarditis, CTCAE|Pericarditis|Pericarditis|Pericarditis

    a disorder characterized by irritation to the layers of the pericardium (the protective sac around the heart).
  • ST Elevation Pericarditis by ECG Finding|ST ELEVATION PERICARDITIS|ST Elevation Pericarditis|ST Elevation Pericarditis by EKG Finding|ST elevation pericarditis

    an electrocardiographic finding of st elevation which is concave upwards, and which is often accompanied by pr segment depression. (cdisc)
  • Uremic Pericarditis

    inflammation of the pericardium associated with chronic kidney failure.
  • Viral Pericarditis

    pericarditis that is caused by an infection with a viral agent.
  • Pericardial Anomaly

    any abnormality involving the pericardium.
  • Pneumopericardium

    the presence of air in the pericardial cavity. causes include chest injury in adults, and respiratory distress syndrome in infants.

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Pericarditis (chronic) NOS

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert I31.9 to ICD-9-CM

  • ICD-9-CM Code: 423.9 - Pericardial disease NOS
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education


Pericardial Disorders

The pericardium is a membrane, or sac, that surrounds your heart. It holds the heart in place and helps it work properly. Problems with the pericardium include:

  • Pericarditis - an inflammation of the sac. It can be from a virus or other infection, a heart attack, heart surgery, other medical conditions, injuries, and certain medicines.
  • Pericardial effusion - the buildup of fluid in the sac
  • Cardiac tamponade - a serious problem in which buildup of fluid in the sac causes problems with the function of the heart

Symptoms of pericardial problems include chest pain, rapid heartbeat, and difficulty breathing. Fever is a common symptom of acute pericarditis. Your doctor may use a physical exam, imaging tests, and heart tests to make a diagnosis. Treatment depends on the cause.

NIH: National Heart, Lung, and Blood Institute


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Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.