Patient presents with a chief complaint of decreased appetite, documented as anorexia, loss of appetite, or poor appetite.  Onset of symptoms is [duration and timeframe, e.g., gradual over the past two weeks].  Associated symptoms may include weight loss, fatigue, nausea, altered taste, difficulty swallowing (dysphagia), abdominal pain, early satiety, or changes in bowel habits.  Patient reports consuming [estimated daily caloric intake] compared to their usual intake of [usual daily caloric intake].  Review of systems reveals [positive and pertinent negative findings].  Medical history includes [relevant medical conditions, e.g., diabetes, cancer, hypothyroidism, gastrointestinal disorders, recent infections, mental health conditions like depression or anxiety].  Current medications include [list all current medications including prescription and over-the-counter].  Physical examination reveals [objective findings, e.g.,  weight, BMI, abdominal tenderness, signs of dehydration].  Differential diagnoses considered include [list potential diagnoses, e.g., gastroparesis, depression, medication side effect, infection, malignancy].  Initial diagnostic workup may include [laboratory tests ordered, e.g., complete blood count, comprehensive metabolic panel, thyroid function tests, urinalysis].  Plan includes [treatment plan and patient education, e.g., dietary counseling, appetite stimulants, addressing underlying medical conditions, follow-up appointments].  Assessment: Loss of appetite likely secondary to [presumed cause, e.g., medication side effect, underlying medical condition].  ICD-10 code: [appropriate ICD-10 code, e.g., R63.0].  Patient advised to monitor symptoms and return for follow-up as scheduled.