Patient presents with complaints concerning possible splenic artery aneurysm.  Symptoms include, but are not limited to, left upper quadrant pain, abdominal pain, nausea, and a sense of fullness.  Patient history includes hypertension,  and family history is significant for abdominal aortic aneurysm.  Physical examination reveals mild tenderness in the left upper quadrant.  Abdominal ultrasound and computed tomography angiography (CTA) of the abdomen were ordered to evaluate for splenic artery aneurysm.  Imaging revealed a saccular aneurysm measuring [measurement] cm in the distal splenic artery.  Differential diagnosis included other causes of abdominal pain such as pancreatitis, gastric ulcer, and nephrolithiasis.  Given the patient's presentation, imaging findings, and risk factors, a diagnosis of splenic artery aneurysm was established.  The patient was counseled on the risks and benefits of observation versus endovascular repair versus open surgical repair.  Treatment plan includes close monitoring with serial imaging and follow-up in [timeframe] to assess aneurysm size and symptoms.  Patient education materials on splenic artery aneurysm, including potential complications like rupture and splenic infarction, were provided.  ICD-10 code I72.4 (Aneurysm of splenic artery) is documented.  CPT codes for diagnostic imaging and potential future interventions, such as embolization or surgical resection, will be determined based on the chosen treatment plan.