ICD-9 Diagnosis Code 420.0

Ac pericardit in oth dis

Diagnosis Code 420.0

ICD-9: 420.0
Short Description: Ac pericardit in oth dis
Long Description: Acute pericarditis in diseases classified elsewhere
This is the 2014 version of the ICD-9-CM diagnosis code 420.0

Code Classification
  • Diseases of the circulatory system (390–459)
    • Other forms of heart disease (420-429)
      • 420 Acute pericarditis

Information for Medical Professionals

Code Edits
The following edits are applicable to this code:
Manifestations not allowed as principal diagnosis Additional informationCallout TooltipManifestations not allowed as principal diagnosis
Manifestations not allowed as principal diagnosis: Manifestation codes describe the manifestation of an underlying disease, not the disease itself, and therefore should not be used as a principal diagnosis.

Convert to ICD-10 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Acute pericarditis - uremic
  • Acute pericarditis associated with another disorder
  • Acute tuberculous pericarditis
  • Mycotic pericarditis
  • Parasitic pericarditis
  • Pericarditis associated with atrial septal defect
  • Pericarditis associated with infectious mononucleosis
  • Pericarditis associated with severe chronic anemia
  • Pericarditis secondary to aortic aneurysm
  • Pericarditis secondary to aortic aneurysm with leakage into pericardial sac
  • Pericarditis secondary to benign primary tumor
  • Pericarditis secondary to collagen vascular disease
  • Pericarditis secondary to malignant primary tumor
  • Pericarditis secondary to myxedema
  • Pericarditis secondary to penetrating trauma
  • Pericarditis secondary to uremia
  • Pericarditis with pericardial effusion due to Mycobacterium tuberculosis complex
  • Q fever pericarditis

Index of Diseases and Injuries
References found for the code 420.0 in the Index of Diseases and Injuries:

Information for Patients

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

  • Cardiac tamponade
  • Electrocardiogram
  • Pericardial fluid culture
  • Pericardial fluid Gram stain
  • Pericardiocentesis
  • Pericarditis
  • Pericarditis - after heart attack
  • Pericarditis - constrictive

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