Gastric Adenocarcinoma

Patient presents with complaints consistent with gastric adenocarcinoma symptoms, including persistent indigestion, dyspepsia, abdominal pain, nausea, vomiting, unexplained weight loss, and early satiety.  Physical examination revealed abdominal tenderness and possible palpable mass.  The patient's family history is positive for gastrointestinal cancers.  Differential diagnosis includes peptic ulcer disease, gastritis, gastroesophageal reflux disease (GERD), and other gastric malignancies.  Initial laboratory findings demonstrate anemia, occult blood in stool, and elevated tumor markers such as CEA and CA 19-9.  Esophagogastroduodenoscopy (EGD) with biopsy was performed, revealing an ulcerated lesion in the gastric antrum.  Histopathological analysis confirmed the diagnosis of gastric adenocarcinoma, specifically (specify histological subtype e.g., intestinal type, diffuse type, or mixed).  Staging workup, including CT scan of the abdomen and pelvis, chest x-ray, and endoscopic ultrasound, is underway to determine the extent of disease and assess for metastasis to regional lymph nodes, liver, or other distant sites.  The patient will be referred to a multidisciplinary team including medical oncology, surgical oncology, and radiation oncology for discussion of treatment options, which may include surgical resection (gastric bypass, total gastrectomy, or subtotal gastrectomy), chemotherapy, radiation therapy, or a combination thereof.  Patient education regarding gastric cancer prognosis, treatment side effects, and palliative care options was provided.  Follow-up appointments are scheduled for further evaluation and treatment planning.  ICD-10 code C16.  Medical billing codes will reflect procedures performed and consultations obtained.