Patient presents with signs and symptoms suggestive of unspecified heart failure.  Clinical findings include dyspnea on exertion, orthopnea, paroxysmal nocturnal dyspnea, and peripheral edema.  The patient reports fatigue and decreased exercise tolerance.  Cardiac examination reveals a displaced apical impulse, an S3 gallop, and pulmonary rales.  Initial assessment indicates fluid overload.  While the specific type of heart failure (systolic, diastolic, or heart failure with preserved ejection fraction HFpEF) is not yet determined, the symptoms and physical exam findings warrant a diagnosis of unspecified heart failure.  Differential diagnosis includes other causes of dyspnea such as chronic obstructive pulmonary disease COPD and pulmonary embolism.  Further investigation is required to determine the underlying etiology and specific type of heart failure.  Ordered tests include a complete blood count CBC, basic metabolic panel BMP, brain natriuretic peptide BNP, chest x-ray, and echocardiogram to assess cardiac function and ejection fraction.  Initial treatment plan includes diuretics for fluid management and initiation of standard heart failure medications pending further diagnostic clarification.  Patient education provided regarding sodium restriction, fluid management, and medication adherence.  Follow-up scheduled to review test results and refine the treatment plan based on the specific type of heart failure identified.  ICD-10 code I50.9 for unspecified heart failure is documented.  Medical billing codes will be determined upon completion of diagnostic testing and establishment of a definitive heart failure classification.