In the present study, a total of 23 patients, 12/19 initially coded as “unclassified platelet disorder” and 11/11 for whom only a suspicion of MYH9‐RD was put forward with no conclusive diagnosis, received a molecular diagnosis of MYH9‐RD because a likely pathogenic or pathogenic variant in MYH9 was found. Here, MYH9 is linked to blood platelet disease.