Positive predictive value of the diagnosis of acute myocardial infarction in an administrative database

J Gen Intern Med. 1999 Sep;14(9):555-8. doi: 10.1046/j.1525-1497.1999.10198.x.


Objective: To determine the positive predictive value of ICD-9-CM coding of acute myocardial infarction and cardiac procedures.

Methods: Using chart-abstracted data as the standard, we examined administrative data from the Veterans Health Administration for a national random sample of 5,151 discharges.

Main results: The positive predictive value of acute myocardial infarction coding in the primary position was 96.9%. The sensitivity and specificity of coding were, respectively, 96% and 99% for catheterization, 95.7% and 100% for coronary artery bypass graft surgery, and 90.3% and 99. 7% for percutaneous transluminal coronary angioplasty.

Conclusions: The positive predictive value of acute myocardial infarction and related procedure coding is comparable to or better than previously reported observations of administrative databases.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Aged
  • Databases, Factual*
  • Diagnosis-Related Groups
  • Humans
  • Male
  • Medical Records / classification*
  • Middle Aged
  • Myocardial Infarction / classification
  • Myocardial Infarction / diagnosis*
  • Patient Discharge
  • Predictive Value of Tests
  • Sensitivity and Specificity
  • United States
  • United States Department of Veterans Affairs