RT Journal Article SR Electronic T1 Emergency department diagnostic codes: useful data? JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 627 OP 627 DO 10.1136/emermed-2017-206914 VO 34 IS 9 A1 Dickson, Jon M A1 Mason, Suzanne M A1 Bailey, Andy YR 2017 UL http://emj.bmj.com/content/34/9/627.abstract AB