Study flow chart and diagnosis at discharge from ED Study flow chart and diagnosis at discharge from ED. ACS, acute coronary syndrome; CCP, cardiac chest pain; ED, emergency department; EMT, emergency medical transport; GI: gastrointestinal disorders; GP, general practitioner, NCCP, non-CCP; NCCP-K, NCCP of ... Study flow chart and diagnosis at discharge from ED. ACS, acute coronary syndrome; CCP, cardiac chest pain; ED, emergency department; EMT, emergency medical transport; GI: gastrointestinal disorders; GP, general practitioner, NCCP, non-CCP; NCCP-K, NCCP of known origin; NCCP-U, NCCP of unknown origin; NSTEMI, non-STEMI; STEMI, ST-elevated myocardial infarction; UAP, unstable angina pectoris. Karen Anne Mol et al. Open Heart 2018;5:e000859 ©2018 by British Cardiovascular Society