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Referral for investigation: a redundant SNOMED-CT chief presenting complaint
Peter G Jones1, Mark Gardener2
1Adult Emergency Department, Auckland City Hospital, Auckland District Health Board; Department of Surgery, School of Medicine, University of Auckland.
Aim:
The Ministry of Health has mandated that all emergency department (ED) presentations are coded using the Systematised Nomenclature of Medicine - Clinical Terms (SNOMED-CT) from 2021. The current ED reference set contains the non-specific term 'Referral for investigation' in the list of available chief presenting complaints (CPCs). The aim of this study was to determine the rate of use of this term and how often a more specific (and therefore more clinically useful) term was used.
Method:
This was a cross-sectional audit of routinely collected presenting complaint data, supplemented by a retrospective case note review.
Results:
'Referral for investigation' was used for 497/9,067 (5.5%, 95%CI 5-6%) presentations, with increased use for urgent cases. An alternative CPC was available in 467/497 (94.0%, 95%CI 92-96%) of cases from the existing reference set. Of 98 different CPCs, the common alternatives were: 'Chest pain' (6.4%), 'Shortness of breath' (4.2%) 'Abdominal pain' (3.6%), 'Altered mental status' (3.4%) and 'Postoperative complication' (3.2%). Six of 13 cardiac arrests and eight of 63 of multiple trauma cases were coded as 'Referral for investigation'. With the addition of two new terms to the New Zealand reference set ('Abnormal blood test' and 'Radiology request'), each of the remaining 30 presentations would have an alternative and more accurate CPC.
Conclusion:
'Referral for investigation' should be removed from the New Zealand emergency department reference set for chief presenting complaints to improve data quality.
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