Table 2

A proposed terminology and mapping for acute coronary syndromes

Proposed BCS terminology	Maps to	ICD-10 code	ICD-10 term equivalent	Maps to	Read code	Read code term equivalent
ACS, acute coronary syndrome; AMI, acute myocardial infarction; BCS, British Cardiac Society; MI, myocardial infarction, NOS, not otherwise specified.
ACS unspecified		I200	Unstable angina		G3111	Unstable angina
ACS with unstable angina (troponin −ve)		I200TN	Unstable angina: troponin −ve		G3111	Unstable angina
ACS with myocyte necrosis (troponin +ve)		I200TP	Unstable angina: troponin +ve		G31y1	Microinfarction of heart
ACS aborted MI		I200AB	No equivalent ICD10 term		G3110	MI aborted
*ACS with clinical MI*	Maps to	I21	*Parent ICD10 code covering AMI*	Maps to	G30	Parent read code covering AMI
Acute ST elevation MI of anterior wall		I210	Acute transmural MI of anterior wall		G301z	Anterior MI NOS
			Acute transmural MI of anterior wall		G300	Acute anterolateral infarction
			Acute transmural MI of anterior wall		G301	Other specified anterior MI
			Acute transmural MI of anterior wall		G3010	Acute anteroapical infarction
			Acute transmural MI of anterior wall		G3011	Acute anteroseptal infarction
			Acute transmural MI of anterior wall		G380	Postoperative transmural MI of anterior wall
Acute ST elevation MI of inferior wall		I211	Acute transmural MI of inferior wall		G308	Inferior MI NOS
			Acute transmural MI of inferior wall		G302	Acute inferolateral infarction
			Acute transmural MI of inferior wall		G303	Acute inferoposterior infarction
			Acute transmural MI of inferior wall		G30yz	Other acute MI NOS
			Acute transmural MI of inferior wall		G381	Postoperative transmural MI of inferior wall
Acute ST elevation MI of other sites		I212	Acute transmural MI of other sites		G304	Posterior MI NOS
			Acute transmural MI of other sites		G305	Lateral MI NOS
			Acute transmural MI of other sites		G306	True posterior MI
			Acute transmural MI of other sites		G30y2	Acute septal infarction
			Acute transmural MI of other sites		G382	Postoperative transmural MI of other sites
Acute ST elevation MI of unspecified site		I213	Acute transmural MI of unspecified site		G30X0	AcuteST segment elevation MI
			Acute transmural MI of unspecified site		Gyu34	[X]Acute transmural MI of unspecified site
Acute non-ST elevation MI		I214	Acute subendocardial MI		G3071	Acute non-ST segment elevation MI
		I214	Acute subendocardial MI		G307	Acute subendocardial infarction
		I214	Acute subendocardial MI		G3070	Acute non-Q wave infarction
		I214	Acute subendocardial MI		G30y1	Acute papillary muscle infarction
		I214	Acute subendocardial MI		G384	Postoperative subendocardial MI
Acute MI unspecified		I219	Acute MI unspecified		G30y	Other acute MI
		I219	Acute MI unspecified		G30z	Acute MI NOS