ICD9Data.com
2007 ICD-9-CM Diagnosis Code 420.0
Acute pericarditis in diseases classified elsewhere
2007 ICD-9-CM Diagnosis Code 420.9
Other and unspecified acute pericarditis
2007 ICD-9-CM Diagnosis Code 420.90
Acute pericarditis unspecified
2007 ICD-9-CM Diagnosis Code 420.91
Acute idiopathic pericarditis
2007 ICD-9-CM Diagnosis Code 420.99
Other acute pericarditis