Fig. 3From: ORPHAcodes use for the coding of rare diseases: comparison of the accuracy and cross country comparabilityDistribution (%) of ORPHAcodes collected during the period (1st January 2019–30th September 2021) in all countries/regions by preferential parent of the Orphanet classification (version 2022) in decreasing order of frequency (n = 2576)Back to article page