Insulin or oral hypoglycemic medication non-compliance (or insulin pump malfunction)
Infection
Cardiac Ischemia
Intra-abdominal infections
Steroid use
ETOH Abuse
Toxicologic exposure
Pregnancy
Hyperthyroidism
GI Hemorrhage
CVA
PE
Pancreatitis
Renal Failure
GI Bleed
Alcoholic<unk> 
SGLT-2 inhibitors (euglycemic<unk> 
Physiologic stress response (rarely causes glucose >200 mg/dL)
Diabetes mellitus (main)
Nonketotic hyperglycemia
Hyperosmolar hyperglycemic state (HHS/HONC)<unk>  (adult)<unk>  (peds)
Cerebral edema in<unk><unk>  foot infection<unk>  peripheral neuropathy
Hemochromatosis
Iron toxicity
Sepsis
Nonketotic hyperglycemia
Hyperosmolar hyperglycemic state (HHS/HONC)<unk>  (adult)<unk>  (peds)
Cerebral edema in<unk><unk>  foot infection<unk>  peripheral neuropathy
Cerebral edema in<unk>
Diabetic ketoacidosis
Insulin or oral hypoglycemic medication non-compliance 
Alcoholic ketoacidosis
Infection
Starvation ketoacidosis
Cardiac Ischemia
Cerebral edema in DKA
Intra-abdominal infections