Valid for Submission
I31.9 is a billable diagnosis code used to specify a medical diagnosis of disease of pericardium, unspecified. The code I31.9 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.
The ICD-10-CM code I31.9 might also be used to specify conditions or terms like 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, etc.
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.
Tabular List of Diseases and Injuries
The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code I31.9:
Inclusion TermsInclusion 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
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code I31.9 are found in the index:
- - Pericarditis (with decompensation) (with effusion) - I31.9
- - chronic (nonrheumatic) - I31.9
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
- Familial pericarditis
- Fixed flexion deformity finger
- Hydralazine-induced pericarditis
- Injury of pericardium
- Non-infectious pericarditis
- Non-traumatic pneumopericardium
- Pericardial anomaly
- Pericardial defect
- Pericarditis caused by toxin
- Pericarditis due to metabolic disease
- Pericarditis secondary to collagen vascular disease
- Pericarditis secondary to penetrating trauma
- Pericarditis secondary to scleroderma
- Post-radiation pericarditis
- Post-traumatic pericarditis
- Post-traumatic pericarditis
- Procainamide-induced pericarditis
- Subacute pericarditis
- Wound inflammation
Diagnostic Related Groups - MS-DRG Mapping
|MS-DRG||MS-DRG Title||MCD||Relative Weight|
|314||OTHER CIRCULATORY SYSTEM DIAGNOSES WITH MCC||05||2.0834|
|315||OTHER CIRCULATORY SYSTEM DIAGNOSES WITH CC||05||0.9752|
|316||OTHER CIRCULATORY SYSTEM DIAGNOSES WITHOUT CC/MCC||05||0.7495|
The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.
Convert I31.9 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code I31.9 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
Information for Patients
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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