A Research Study to Examine Blood Sugar Control, Treatment Satisfaction and Adherence in People With Type 2 Diabetes After Switching From Daily Basal Insulin to Once-weekly Insulin Icodec

Inclusion Criteria: * Signed consent obtained before any study-related activities (study-related activities are any procedure related to recording of data according to the protocol). * The decision to initiate treatment with commercially available insulin icodec has been made by the participant/Legally Acceptable Representative (LAR) and the treating physician before and independently from the decision to include the participant in this study. * Male or female, age above or equal to 18 years at the time of signing informed consent. * Diagnosed with T2D greater than or equal to (≥) 1 year before signing informed consent. * Treated with once- or twice-daily basal insulin injections ≥ 6 months before signing informed consent. Any other antidiabetic medications are allowed, except for bolus insulin during the 90 days prior to switching to icodec for a period of 14 days or more. * Available HbA1c within 90 days prior to the 'Initiation visit' (V1) or HbA1c measurement taken in relation with the 'Initiation visit' (V1) if in line with local clinical practice. * Treatment-naïve to once-weekly insulin prior to the 'Initiation Visit' (V1). Exclusion Criteria: * Previous participation in this study. Participation is defined as having given informed consent in this study. * Treatment with any investigational drug within 30 days prior to enrolment into the study. * Mental incapacity, unwillingness or language barriers precluding adequate understanding or cooperation.