Strictly speaking, gastroscopy is an examination method when diagnosing and treating digestive diseases, and is not a surgery, so it is not possible to distinguish between levels.
Under normal circumstances, surgery is divided into four levels; Level I surgery is the simplest surgery, less traumatic, faster recovery, such as fibroidectomy, etc.; Level II surgery is relatively complex, such as appendicitis and other more common surgery; Level III surgery is technically more difficult, the process is more complex, such as ectopic pregnancy surgery, etc.; Level IV surgery for the operation of the technical difficulty, the complexity of the surgical process, the level of risk, such as the removal of malignant cancers surgery.
Gastroscopy can be completed in 5~10 minutes, and the whole process is relatively safe. Gastroscopy can assist in some of the surgeries, such as transgastroscopic polypectomy, gastroscopic gastric mucous membrane stripping, etc. If endoscopic treatment is carried out, the specific grading can be consulted with specialized physicians.