The ISARIC COVID-19 case report form collects data on patients medical history. A detailed completion guide collects data on patients medical history.
A planned ISARIC validation study requires a series of SNOMED CT codelists to replicate as closely as possible the details given in the ISARIC case report form.
This codelist is designed to identify people with variceal bleeding, to be used in combination with other codelists to identify people with various severities of liver disease.
Coding system*
SNOMED CT
Sensitivity versus specificity / Relevant definitions
Specificity focused
Variceal haemorrhage is defined as bleeding from an oesophageal or gastric varix at the time of endoscopy or the presence of large oesophageal varices with blood in the stomach and no other recognisable cause of bleeding.
Existing relevant codelists
N/A
Search terms / synonyms / search strategy
Identify "Bleeding oesophageal varices (17709002)" parent term. Include all child terms.
Search terms:
Varices - review terms and include exclude as below.
Inclusion Criteria for Codes
Codes indicating bleeding oesophageal or gastric varices
Exclusion Criteria for Codes
Varices without bleeding
Borderline cases
Bleeding varices of prostate (438510004) - excluded
Procedures related to treatment of bleeding varices - excluded
User Requirements*
The ISARIC COVID-19 case report form collects data on patients medical history. A detailed completion guide collects data on patients medical history. A planned ISARIC validation study requires a series of SNOMED CT codelists to replicate as closely as possible the details given in the ISARIC case report form. This codelist is designed to identify people with variceal bleeding, to be used in combination with other codelists to identify people with various severities of liver disease.
Coding system*
SNOMED CT
Sensitivity versus specificity / Relevant definitions
Specificity focused
Variceal haemorrhage is defined as bleeding from an oesophageal or gastric varix at the time of endoscopy or the presence of large oesophageal varices with blood in the stomach and no other recognisable cause of bleeding.
Existing relevant codelists
N/A
Search terms / synonyms / search strategy
Identify "Bleeding oesophageal varices (17709002)" parent term. Include all child terms.
Search terms: Varices - review terms and include exclude as below.
Inclusion Criteria for Codes
Codes indicating bleeding oesophageal or gastric varices
Exclusion Criteria for Codes
Varices without bleeding
Borderline cases
Bleeding varices of prostate (438510004) - excluded Procedures related to treatment of bleeding varices - excluded
Final codelist
https://www.opencodelists.org/codelist/user/chriswood/variceal-bleeding/24605e7f/