Patient presents with symptoms consistent with type 2 diabetes mellitus, including polyuria, polydipsia, polyphagia, and unexplained weight loss.  The patient reports a family history of diabetes.  Physical examination reveals acanthosis nigricans.  Laboratory results show elevated fasting blood glucose of 130 mgdL and HbA1c of 7.2 percent, confirming the diagnosis of type 2 diabetes.  Diagnostic criteria for diabetes include HbA1c greater than or equal to 6.5 percent, fasting plasma glucose greater than or equal to 126 mgdL, or a 2-hour plasma glucose greater than or equal to 200 mgdL during an oral glucose tolerance test.  Differential diagnosis included prediabetes, gestational diabetes, and type 1 diabetes.  Assessment includes evaluation for diabetic complications such as diabetic neuropathy, retinopathy, nephropathy, and cardiovascular disease.  Plan includes lifestyle modifications with dietary counseling emphasizing a diabetic diet, exercise recommendations, and initiation of metformin therapy.  Patient education provided on diabetes management, blood glucose monitoring, medication administration, and the importance of regular follow-up appointments for ongoing diabetes care and management.  Medical coding includes ICD-10 code E11.9 for type 2 diabetes mellitus without complications and CPT codes for office visit and diabetes self-management training.  The patient will be scheduled for follow-up to monitor treatment efficacy, assess for diabetes complications, and adjust medication as needed to achieve optimal glycemic control.  This documentation supports medical necessity for diabetes treatment and facilitates accurate medical billing and coding.