Non-specific code 2015 ICD-9-CM Diagnosis Code 420
Acute pericarditis
  • 2015
  • Non-Billable Code

  • There are 2 ICD-9-CM codes below 420 that define this diagnosis in greater detail. Do not use this code on a reimbursement claim.
420 Includes
  • acute:
    • mediastinopericarditis
    • myopericarditis
    • pericardial effusion
    • pleuropericarditis
    • pneumopericarditis
420 Excludes
  • acute rheumatic pericarditis (391.0)
  • postmyocardial infarction syndrome [Dressler's] (411.0)
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 420 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2015 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.