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Table 1 Categories of read or ICD 10 codes that might be associated with a hospital admission for upper gastrointestinal haemorrhage

From: Defining upper gastrointestinal bleeding from linked primary and secondary care data and the effect on occurrence and 28 day mortality

Category Order Group name Group definition Probable or possible codes
1 Upper GI bleed cause Code for known upper GI bleed diagnosis or cause. e.g. ulcer, oesophagitis, NSAID or Aspirin use, cirrhosis, upper GI malignancy etc. Probable
2 Upper GI bleed symptom Symptoms indicating upper GI bleed e.g. melaena, haematemesis etc. Probable
3 Upper GI endoscopy Any upper GI endoscopy code (Not ERCP/EUS). Probable
4 Death (any cause) Any code associated with death. Probable
5 Blood transfusion Any code for blood transfusion or cross matching. Probable
6 Upper GI procedure Any code for an upper GI procedure plausible for managing a bleeding episode. Probable
7 GI bleed symptom Any general code for GI bleed (not specifically upper or lower). Probable
8 Upper GI diagnosis Any other code for an upper GI pathology that might be associated with an upper GI bleed. Possible
9 Hospital Any code for referral, admission or discharge to hospital in a general or related specialty. Possible
10 Upper GI symptom Any other code for symptoms of upper GI pathology e.g. vomiting. Possible
11 GI symptom or diagnosis Other GI diagnoses or non specific GI symptoms(e.g. pain) excluding lower GI symptoms. Possible
12 Alcohol Any code indicating alcohol consumption or complications. Possible
13 Anaemia Any code for anaemia excluding chronic deficiency anaemias and fatigue. Possible
14 Coagulation Any code indicating primary or secondary clotting abnormality, or use of anti coagulation therapy. Possible
15 Collapse Any code indicating collapse, fall or loss of consciousness. Possible
16 Other codes Other codes specifying a change in health state with no specific diagnosis Possible
  1. Listed in Order of how Probable a Code Category Would be Associated with an Upper Gastrointestinal Haemorrhage Admission (1=Most Probable).