| Service | Number of cases | OPS number | Info | 
																			
											| Taking a tissue sample (biopsy) of the upper digestive tract, biliary tract or the pancreas by endoscopy | not specified | 1-440.9 |  | 
																			
											| Taking a tissue sample (biopsy) of the upper digestive tract, biliary tract or the pancreas by endoscopy | not specified | 1-440.a |  | 
																			
											| Taking a tissue sample (biopsy) of the liver, biliary tract or the pancreas through the skin, guided by imaging procedures such as ultrasound | 4 | 1-442.0 |  | 
																			
											| Taking a tissue sample (biopsy) of the lower digestive tract by endoscopy | 32 | 1-444.6 |  | 
																			
											| Taking a tissue sample (biopsy) of the lower digestive tract by endoscopy | 55 | 1-444.7 |  | 
																			
											| Taking a tissue sample (biopsy) of the lower digestive tract by endoscopy | not specified | 1-444.x |  | 
																			
											| Examination of the oesophagus by endoscopy | not specified | 1-630.0 |  | 
																			
											| Examination of the oesophagus, stomach and duodenum by endoscopy | 10 | 1-632.0 |  | 
																			
											| Examination of the biliary tract by X-ray examination with contrast medium during endoscopy of the duodenum | 21 | 1-640 |  | 
																			
											| Examination of the biliary tract and pancreatic ducts by X-ray examination with contrast medium during endoscopy of the duodenum | not specified | 1-642 |  | 
																			
											| Access to the ducts of the gallbladder and pancreas via endoscopy of the duodenum | not specified | 1-645 |  | 
																			
											| Examination of the large intestine by endoscopy - colonoscopy | 15 | 1-650.0 |  | 
																			
											| Examination of the large intestine by endoscopy - colonoscopy | 189 | 1-650.1 |  | 
																			
											| Examination of the large intestine by endoscopy - colonoscopy | 305 | 1-650.2 |  | 
																			
											| Examination of the large intestine by endoscopy - colonoscopy | not specified | 1-650.x |  | 
																			
											| Examination of the intestines by endoscopy via an artificial bowel opening (ostomy) | not specified | 1-652.0 |  | 
																			
											| Examination of the intestines by endoscopy via an artificial bowel opening (ostomy) | not specified | 1-652.1 |  | 
																			
											| Examination of the rectum by endoscopy | 4 | 1-654.0 |  | 
																			
											| Special staining of the lining (mucosa) of the small and large intestine and the anal mucosa during endoscopy | not specified | 1-655 |  | 
																			
											| Comprehensive ultrasound examination with contrast medium for investigating and excluding suspected diagnoses | not specified | 3-030 |  | 
																			
											| Ultrasound of the stomach with access through the oesophagus | not specified | 3-053 |  | 
																			
											| Ultrasound of the biliary tract with access through the oesophagus | not specified | 3-055.0 |  | 
																			
											| Ultrasound the pancreas with access through the oesophagus | not specified | 3-056 |  | 
																			
											| Ultrasound of the tissue behind the abdominal cavity with access through the oesophagus | not specified | 3-05a |  | 
																			
											| Magnetic resonance imaging (MRI) of the head without contrast medium | not specified | 3-800 |  | 
																			
											| Magnetic resonance imaging (MRI) of the head with contrast medium | not specified | 3-820 |  | 
																			
											| Other operations on the oesophagus | not specified | 5-429.8 |  | 
																			
											| Surgical insertion of a tube into the stomach through the abdominal wall for artificial feeding | not specified | 5-431.20 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | 4 | 5-452.60 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | 142 | 5-452.61 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | 38 | 5-452.62 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | 12 | 5-452.63 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | not specified | 5-452.73 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | not specified | 5-452.82 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | 6 | 5-452.a0 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | not specified | 5-452.a1 |  | 
																			
											|  | not specified | 5-452.b1 |  | 
																			
											| Other operations on the intestine | 37 | 5-469.d3 |  | 
																			
											| Other operations on the intestine | 19 | 5-469.e3 |  | 
																			
											| Other operations on the intestine | not specified | 5-469.m3 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the rectum with access through the anus | 11 | 5-482.01 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the rectum with access through the anus | not specified | 5-482.f0 |  | 
																			
											| Other operations on the rectum | not specified | 5-489.b |  | 
																			
											| Other operations on the rectum | not specified | 5-489.d |  | 
																			
											| Operation on the biliary tract during gastroscopy | not specified | 5-513.1 |  | 
																			
											| Operation on the biliary tract during gastroscopy | 6 | 5-513.20 |  | 
																			
											| Operation on the biliary tract during gastroscopy | not specified | 5-513.21 |  | 
																			
											| Operation on the biliary tract during gastroscopy | not specified | 5-513.a |  | 
																			
											| Operation on the biliary tract during gastroscopy | 15 | 5-513.b |  | 
																			
											| Operation on the biliary tract during gastroscopy | not specified | 5-513.h0 |  | 
																			
											| Operation on the pancreatic duct during gastroscopy | not specified | 5-526.20 |  | 
																			
											| Operation on the pancreatic duct during gastroscopy | not specified | 5-526.21 |  | 
																			
											| Exchange or removal of a feeding tube inserted into the stomach through the skin | 6 | 8-123.0 |  | 
																			
											|  | not specified | 9-984.7 |  | 
																			
											|  | 10 | 9-999 |  |