OBJECTIVE Living with type 1 diabetes is challenging, but more barriers exist when one also identifies as LGBTQ+ (lesbian, gay, bisexual, transgender, queer, or other gender-expansive identities). Acknowledging the importance of identifying this population and providing personalized care, the Health Resources and Services Administration mandated institutions to document sexual orientation and gender identity (SOGI) data. To understand the current state of SOGI documentation in the T1D Exchange Quality Improvement Collaborative, a survey assessing LGBTQ+ supportive and inclusive care practices was given to affiliated sites. RESEARCH DESIGN AND METHODS Thirty-three pediatric and 21 adult care centers were surveyed via Qualtrics. The survey included questions about their electronic health record documentation of patient-identified gender, pronouns, sexual orientation, and sex assigned at birth (SAAB). Care centers also reported on the legality of gender-affirming care in their municipalities, as well as their willingness to change SAAB after patients meet requirements. Fisher’s exact tests were used to evaluate response frequencies. RESULTS All 33 of the pediatric centers and 81% (17 of 21) of the adult centers responded to the survey. Sixty-four percent of pediatric centers had established strategies to support SOGI documentation, whereas only 50% of adult centers had implemented strategies. Some adult centers could not confirm whether they documented SOGI. Differences were seen between the pediatric and adult endocrinology centers in their documentation of gender identity (P = 0.04) and pronouns (P = 0.02). CONCLUSION Although most endocrinology centers documented gender identity and pronouns, fewer documented sexual orientation. Further work is needed to improve SOGI documentation and assess its impact on LGBTQ+ patients with diabetes.