2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Circulatory System 390-459 > Ischemic Heart Disease 410-414 > Other Acute And Subacute Forms Of Ischemic Heart Disease 411.* > 2006 ICD-9-CM Diagnosis 411.1 Intermediate coronary syndrome View the most recent version of ICD-9-CM 411.1 Precordial pain at rest, which may precede a MYOCARDIAL INFARCTION. 411.1 is a specific code that can be used to specify a diagnosis 411.1 contains 15 index entries View the ICD-9-CM Volume 1 411.* hierarchy Alternate Terminology Impending infarction Preinfarction angina Preinfarction syndrome Unstable angina 411.1 Excludes angina (pectoris) (413.9) decubitus (413.0)  Index entries containing 411.1: Angina (attack) (cardiac) (chest) (effort) (heart) (pectoris) (syndrome) (vasomotor) 413.9 accelerated 411.1 crescendo 411.1 initial 411.1 preinfarctional 411.1 progressive 411.1 unstable 411.1 Impending coronary syndrome 411.1 myocardial infarction 411.1 Infarct, infarction impending (myocardium) 411.1 myocardium, myocardial (acute or with a stated duration of 8 weeks or less) (with hypertension) 410.9 impending 411.1 Syndrome - see also Disease acute coronary 411.1 coronary insufficiency or intermediate 411.1 impending coronary 411.1 intermediate coronary (artery) 411.1 preinfarction 411.1