Article
Administrative coding for alpha-1 antitrypsin deficiency including the pi*ZZ phenotype is accurate in Sweden.
Scandinavian journal of gastroenterology - 1 Nov 2025
Boeckmans Joost, Ullman Sofia, Ludvigsson Jonas F, Wester Axel, Wahlin Staffan, Hagström Hannes
Abstract excerpt
BACKGROUND: We aimed to validate the International Classification of Diseases (ICD)-10 codes for alpha-1 antitrypsin deficiency (AATD) (E880A = asymptomatic AATD; E880B = symptomatic AATD) in a large hospital reporting to the Swedish National Patient Register and to ascertain their relation to the protease inhibitor (Pi)*ZZ-phenotype. METHODS: We randomly selected 150 adults and 50 children who visited Karolinska...
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