Patient presents with complaints consistent with gastritis, characterized by [Symptom 1 e.g., epigastric pain], [Symptom 2 e.g., nausea], and [Symptom 3 e.g., dyspepsia].  Onset of symptoms occurred [Timeframe e.g., two weeks ago] and is described as [Character of symptoms e.g., intermittent, burning].  Patient denies [Pertinent negative symptom 1 e.g., hematemesis], [Pertinent negative symptom 2 e.g., melena], and [Pertinent negative symptom 3 e.g., weight loss].  Physical examination reveals [Relevant positive finding e.g., mild epigastric tenderness on palpation] with no other significant findings.  Differential diagnosis includes peptic ulcer disease, gastroesophageal reflux disease (GERD), and functional dyspepsia.  However, given the clinical presentation and absence of alarm symptoms, a working diagnosis of unspecified gastritis is made.  Laboratory studies, including [Test 1 e.g., complete blood count (CBC)] and [Test 2 e.g., comprehensive metabolic panel (CMP)], were ordered to rule out other potential causes and assess overall health status.  H. pylori testing is considered to determine the need for eradication therapy.  Initial treatment plan includes lifestyle modifications such as dietary adjustments (avoiding spicy foods, caffeine, and alcohol) and promoting stress reduction techniques.  Pharmacological management may include [Medication class 1 e.g., antacids] and [Medication class 2 e.g., H2 blockers] for symptomatic relief.  Patient education regarding gastritis symptoms, management, and potential complications was provided.  Follow-up scheduled in [Timeframe e.g., two weeks] to assess response to treatment and further investigate if symptoms persist or worsen.  ICD-10 code K29.9 (Gastritis, unspecified) is assigned.