| Service | Number of cases | OPS key | Info | 
																			
											| Complex differential diagnostic sonography of the vascular system with quantitative evaluation | 34 | 3-035 |  | 
																			
											| Examination of the oesophagus, stomach and duodenum by endoscopy | 29 | 1-632.0 |  | 
																			
											| Taking a tissue sample (biopsy) of the upper digestive tract, biliary tract or the pancreas by endoscopy | 24 | 1-440.a |  | 
																			
											|  | 23 | 9-984.9 |  | 
																			
											|  | 15 | 8-98g.10 |  | 
																			
											|  | 14 | 9-984.7 |  | 
																			
											| Examination of the large intestine by endoscopy - colonoscopy | 11 | 1-650.2 |  | 
																			
											|  | 10 | 8-98g.11 |  | 
																			
											|  | 10 | 9-984.8 |  | 
																			
											| Computed tomography (CT) of the head without contrast medium | 9 | 3-200 |  | 
																			
											| Transfusion of blood, red blood cells or platelets from a donor to a recipient | 9 | 8-800.c0 |  | 
																			
											| Computed tomography of the abdomen with contrast medium | 8 | 3-225 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | 7 | 5-452.6x |  | 
																			
											| Treatment of physically or functionally induced disorders of speech, language, the voice or swallowing | 6 | 9-320 |  | 
																			
											| Computed tomography of the chest with contrast medium | 5 | 3-222 |  | 
																			
											|  | 4 | 9-984.a |  | 
																			
											| 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 lower digestive tract by endoscopy | not specified | 1-444.6 |  | 
																			
											| Taking a tissue sample (biopsy) of the lower digestive tract by endoscopy | not specified | 1-444.7 |  | 
																			
											| Examination of the large intestine by endoscopy - colonoscopy | not specified | 1-650.0 |  | 
																			
											| Examination of the large intestine by endoscopy - colonoscopy | not specified | 1-650.1 |  | 
																			
											| Measurement of lung function in an airtight cabin - whole body plethysmography | not specified | 1-710 |  | 
																			
											| Examination of the space between the lungs and ribs by taking a sample of fluid or tissue with a needle | not specified | 1-844 |  | 
																			
											| Examination of the abdominal cavity by taking a sample of fluid or tissue with a needle | not specified | 1-853.0 |  | 
																			
											| Examination of the abdominal cavity by taking a sample of fluid or tissue with a needle | not specified | 1-853.2 |  | 
																			
											| X-rays of the patency of the stomach and intestine | not specified | 3-13b |  | 
																			
											| Computed tomography (CT) of the neck without contrast medium | not specified | 3-201 |  | 
																			
											| Computed tomography (CT) of the spine and the spinal cord without contrast medium | not specified | 3-203 |  | 
																			
											| Magnetic resonance imaging (MRI) of the head without contrast medium | not specified | 3-800 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the stomach | not specified | 5-433.2x |  | 
																			
											| Other operations on the stomach | not specified | 5-449.d3 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the small intestine | not specified | 5-451.b1 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | not specified | 5-452.61 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | not specified | 5-452.a0 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | not specified | 5-452.a1 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | not specified | 5-452.a2 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | not specified | 5-452.a3 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the rectum with access through the anus | not specified | 5-482.x1 |  | 
																			
											| Other operations on the rectum | not specified | 5-489.d |  | 
																			
											| Exchange or removal of a feeding tube inserted into the stomach through the skin | not specified | 8-123.1 |  | 
																			
											| Insertion or exchange of a tube inserted into the small intestine through the oesophagus | not specified | 8-125.2 |  | 
																			
											| Insertion of a small tube (cannula) or catheter into another organ or tissue for the drainage of fluid | not specified | 8-148.0 |  | 
																			
											| Treatment by the targeted insertion of a needle into the chest with subsequent administration or removal of substances, e.g. fluid | not specified | 8-152.1 |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | not specified | 8-810.x |  | 
																			
											|  | not specified | 8-98g.12 |  |