Participants in the adjudication cohort were older [adjudication cohort: 65 (54–72) vs. overall cohort: 58 (46–68)], diabetes was more common (17.3% vs. 14.2%), and N‐terminal prohormone of brain natriuretic peptide was higher [234.6 (86.4–774.8) vs. 127.1 (53.9–412.3) pg/mL], in keeping with patients being selected for the adjudication cohort on the basis of having an HF ICD‐10 code. Here, NPPB is linked to hydrops fetalis.