<prompt> Not associated with diabetes mellitus :Cushing syndromeAcromegalyHypothyroidismPhaeochromocytoma  <response>: Ans. is c i.e., Hypothyroidism o Cortisol, growth hormone and catecholamines increase the blood sugar levels leading to impaired glucose tolerance or diabetes mellitus.Etiologic Classification of Diabetes Mellitus1 Type 1 diabetes beta cell destruction, usually leading to absolute insulin deficiencyA Immune-mediatedB Idiopathic2 Type 2 diabetes may range from predominantly insulin resistance with relative insulin deficiency to a predominantly insulin secretory defect with insulin resistance.3 Other specific types of diabetes -A Genetic defects of beta cell development of function characterized by mutations in:1 Hepatocyte nuclear transcription factor HNF 4a MODY 1.2 Glucokinase MODY 23 HNF-la MODY 34 Insulin promoter factor -1 IPE-1; MODY 45 HNF-1b MODY 5.6 NeuroD1 MODY 67 Mitochondrial DNA8 Subunits of ATP-sensitive potassium channel.9 Proinsulin or insulin.10 Other pancreatic islet regulatorsproteins such as DLF11, PAX4, BLK, GATA4, GATA6, SLC2A2 GLGT2, RFX6, GLIS3.B Genetic detects in insulin action:1 Type A insulin resistance2 Leprechaunism3 Rabson-Mendenhall syndrome4 Lipodystropy syndromesC Diseases of the exocrine pancrease - pancreatitis, pancreatectomy, neoplasia, cystic fibrosis, hemochromatosis, fibrocalculous pancreatopathy, mutations in carboxyl ester lipase.D Endocrinopathies - acromegaly, Cushings syndrome, glucagonoma, pheochromocytoma, hyperthyroidism,somatostatinoma, aldosteronoma.E Drug - or chemical-induced - glucocorticoids, vacor a rodenticide, pentamidine, nicotinic acid, diazoxide, b-adrenergic agonists, thiazides, calcineurin and mTOR inhibitors, hydantoins, asparaginase, a-interferon, protease inhibitors, antipsychotics atypicals and others, epinephrine.F Infections - congenital rubella, cytomegalovirus, coxsackievirus.G Uncommon forms of immune-mediated diabetes - stiff-person syndrome, anti-insulin receptor antibodies.H Other genetic syndromes sometimes associated with diabetes - Wolframs syndrome, Downs syndrome, Klinefelters syndrome, Turners syndrome, Friedreichs ataxia, Huntingtons chorea, Laurence-Moon-Biedl syndrome, myotonic dystrophy, porphyria, Prader-Willi syndrome.4 Gestational diabetes mellitus GDM. 