This is likely due to the NLP misattributing late onset Type II diabetes mellitus patients who are commencing on insulin—a vocabulary error of source document which is highly contextual to the specific snomed code as Type 1 and Type 2 due to the deprecated outdated concepts of insulin-dependent diabetes mellitus (IDDM) and non-insulin-dependent diabetes mellitus (NIDDM). The gene discussed is INS; the disease is type 1 diabetes mellitus.