2025 Icon I20.9. Diagnostic codes are the first step in the drg mapping process. The inclusion note under i20.9 angina pectoris, unspecified indicates that the following are classified to this code:
This page provides explanations for the icd diagnosis code “i20.9 angina pectoris, unspecified” and its subcategories. If the patient has atherosclerosis of the native coronary artery without angina pectoris,.