| Service | Number of cases | OPS key | Info | 
																			
											| Intensive care monitoring of respiration, the heart and the circulation without measurement of the pressure in the pulmonary artery and in the right atrium of the heart | 390 | 8-930 |  | 
																			
											| Examination of the oesophagus, stomach and duodenum by endoscopy | 381 | 1-632.0 |  | 
																			
											|  | 327 | 9-984.8 |  | 
																			
											|  | 270 | 9-984.7 |  | 
																			
											| Others therapeutic procedures to influence the immune system | 241 | 8-547.31 |  | 
																			
											| Taking a tissue sample (biopsy) of the upper digestive tract, biliary tract or the pancreas by endoscopy | 235 | 1-440.a |  | 
																			
											|  | 217 | 9-984.9 |  | 
																			
											| Injection or administration of medicines into the urinary bladder | 200 | 8-132.x |  | 
																			
											| Computed tomography (CT) of the head without contrast medium | 188 | 3-200 |  | 
																			
											| Examination of the large intestine by endoscopy - colonoscopy | 144 | 1-650.2 |  | 
																			
											| Complex differential diagnostic sonography of the vascular system with quantitative evaluation | 136 | 3-035 |  | 
																			
											| Computed tomography of the chest with contrast medium | 112 | 3-222 |  | 
																			
											| Computed tomography of the abdomen with contrast medium | 109 | 3-225 |  | 
																			
											| Others therapeutic procedures to influence the immune system | 105 | 8-547.30 |  | 
																			
											| Measurement of lung function in an airtight cabin - whole body plethysmography | 102 | 1-710 |  | 
																			
											|  | 99 | 8-98g.11 |  | 
																			
											|  | 89 | 9-984.a |  | 
																			
											| Transfusion of blood, red blood cells or platelets from a donor to a recipient | 77 | 8-800.c0 |  | 
																			
											|  | 74 | 8-98g.10 |  | 
																			
											|  | 70 | 9-984.b |  | 
																			
											| Computed tomography (CT) of the abdomen without contrast medium | 63 | 3-207 |  | 
																			
											|  | 63 | 9-984.6 |  | 
																			
											| Computed tomography (CT) of the chest without contrast medium | 52 | 3-202 |  | 
																			
											| Use of a face, nasal, or laryngeal mask for mechanical ventilation | 52 | 8-706 |  | 
																			
											| Taking a tissue sample (biopsy) of the upper digestive tract, biliary tract or the pancreas by endoscopy | 50 | 1-440.9 |  | 
																			
											| Taking a tissue sample (biopsy) of the lower digestive tract by endoscopy | 40 | 1-444.6 |  | 
																			
											| Taking a tissue sample (biopsy) of the lower digestive tract by endoscopy | 39 | 1-444.7 |  | 
																			
											| Ultrasound of the heart (echocardiography) through the oesophagus - TEE | 39 | 3-052 |  | 
																			
											| Intensive care monitoring of respiration, the heart and the circulation with measurement of the pressure in the superior vena cava (central venous pressure) | 34 | 8-931.0 |  | 
																			
											|  | 32 | 8-831.00 |  | 
																			
											| Other operations on the intestine | 29 | 5-469.e3 |  | 
																			
											|  | 28 | 8-98g.12 |  | 
																			
											| Dressings for large areas of skin or serious skin diseases | 26 | 8-191.00 |  | 
																			
											| Examination of the large intestine by endoscopy - colonoscopy | 25 | 1-650.0 |  | 
																			
											| Examination of the trachea and the bronchi by endoscopy | 21 | 1-620.01 |  | 
																			
											| Treatment of cardiac arrhythmias with electric shocks - defibrillation | 21 | 8-640.0 |  | 
																			
											| Insertion of a tube into the trachea for ventilation - intubation | 21 | 8-701 |  | 
																			
											| Examination of the large intestine by endoscopy - colonoscopy | 18 | 1-650.1 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | 17 | 5-452.61 |  | 
																			
											| Other operations on the intestine | 15 | 5-469.d3 |  | 
																			
											| Cardiac or cardiopulmonary resuscitation | 14 | 8-771 |  | 
																			
											| Patient education | 13 | 9-500.0 |  | 
																			
											| Computed tomography (CT) of the neck without contrast medium | 12 | 3-201 |  | 
																			
											| Dressings for large areas of skin or serious skin diseases | 12 | 8-191.10 |  | 
																			
											| Investigation of the activity of the heart and lungs during sleep | 10 | 1-791 |  | 
																			
											| Examination of the trachea and the bronchi by endoscopy | 9 | 1-620.00 |  | 
																			
											| Treatment by the targeted insertion of a needle into the chest with subsequent administration or removal of substances, e.g. fluid | 9 | 8-152.1 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | 8 | 5-452.62 |  | 
																			
											| Other operations on the stomach | 7 | 5-449.t3 |  | 
																			
											| Insertion of a small tube (cannula) or catheter into the space between the lungs and ribs for the drainage of fluid | 7 | 8-144.2 |  | 
																			
											| Evaluation of swallowing with the help of a tube-shaped instrument with a camera mounted at the end (endoscope) | 6 | 1-613 |  | 
																			
											| Examination of the oesophagus, stomach and duodenum by endoscopy | 6 | 1-632.1 |  | 
																			
											| Comprehensive ultrasound examination with contrast medium for investigating and excluding suspected diagnoses | 6 | 3-030 |  | 
																			
											| Computed tomography of the head with contrast medium | 6 | 3-220 |  | 
																			
											| X-rays of the arteries of the neck with contrast medium | 5 | 3-601 |  | 
																			
											| Insertion of a small tube (cannula) or catheter into the space between the lungs and ribs for the drainage of fluid | 5 | 8-144.1 |  | 
																			
											| Insertion of a small tube (cannula) or catheter into another organ or tissue for the drainage of fluid | 5 | 8-148.0 |  | 
																			
											| Treatment by specific positioning of the patient in bed, e.g. positioning in a sling table or special bed | 5 | 8-390.x |  | 
																			
											| Transfusion of other plasma components or genetically engineered blood proteins | 5 | 8-812.50 |  | 
																			
											| Examination of the trachea and the bronchi by endoscopy | 4 | 1-620.0x |  | 
																			
											| Computed tomography (CT) of the pelvis without contrast medium | 4 | 3-206 |  | 
																			
											| Computed tomography of the neck with contrast medium | 4 | 3-221 |  | 
																			
											| Surgical insertion of a tube into the stomach through the abdominal wall for artificial feeding | 4 | 5-431.20 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the stomach | 4 | 5-433.52 |  | 
																			
											| Procedure for dialysing the blood outside the body with removal of the poison over a concentration gradient - dialysis | 4 | 8-854.2 |  | 
																			
											|  | 4 | 8-98g.13 |  | 
																			
											| Measurement of the electrical activity of the heart without a tube (catheter) inserted into the heart via an artery | not specified | 1-266.0 |  | 
																			
											| Taking a tissue sample (biopsy) of the upper digestive tract, biliary tract or the pancreas by endoscopy | not specified | 1-440.6 |  | 
																			
											| Taking a tissue sample (biopsy) during arthroscopy | not specified | 1-482.7 |  | 
																			
											| Examination of the oesophagus by endoscopy | not specified | 1-630.0 |  | 
																			
											| Examination of the oesophagus and the stomach by endoscopy | not specified | 1-631.0 |  | 
																			
											| Examination of the oesophagus, stomach and duodenum by endoscopy | not specified | 1-632.x |  | 
																			
											| Examination of the upper digestive tract by endoscopy through an artificial bowel opening (ostomy) | not specified | 1-638.2 |  | 
																			
											| 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 |  | 
																			
											| Computed tomography (CT) of the spine and the spinal cord without contrast medium | not specified | 3-203 |  | 
																			
											| Computed tomography (CT) of the musculoskeletal system without contrast medium | not specified | 3-205 |  | 
																			
											| Computed tomography of the pelvis with contrast medium | not specified | 3-226 |  | 
																			
											| Other computed tomography (CT) with contrast medium | not specified | 3-22x |  | 
																			
											| X-rays of the arteries in the head with contrast medium | not specified | 3-600 |  | 
																			
											| X-rays of the arteries in the chest with contrast medium | not specified | 3-603 |  | 
																			
											| X-rays of the arteries in the abdomen with contrast medium | not specified | 3-604 |  | 
																			
											| X-rays of the arteries in the legs with contrast medium | not specified | 3-607 |  | 
																			
											| Magnetic resonance imaging (MRI) of the abdominal cavity with contrast medium | not specified | 3-825 |  | 
																			
											| Insertion of a temporary, artificial tracheal opening | not specified | 5-311.0 |  | 
																			
											| Insertion of a temporary, artificial tracheal opening | not specified | 5-311.1 |  | 
																			
											| Insertion of a cardiac pacemaker or of a defibrillator | not specified | 5-377.30 |  | 
																			
											| Other operations on blood vessels | not specified | 5-399.5 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the stomach | not specified | 5-433.20 |  | 
																			
											| Other operations on the stomach | not specified | 5-449.d3 |  | 
																			
											| Other operations on the stomach | not specified | 5-449.e3 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | not specified | 5-452.32 |  | 
																			
											| Other operations on the intestine | not specified | 5-469.21 |  | 
																			
											| Surgical creation of a connection between the urinary bladder and skin of the abdomen for artificial urinary drainage | not specified | 5-572.1 |  | 
																			
											| Surgical procedure on a joint by endoscopy | not specified | 5-810.1h |  | 
																			
											| Operation on the synovium by endoscopy (arthroscopy) | not specified | 5-811.2h |  | 
																			
											| Surgical incision into the muscles, tendons or their connective tissue sheaths | not specified | 5-850.da |  | 
																			
											| Other surgical incision into the skin or subcutaneous tissues | not specified | 5-892.06 |  | 
																			
											| Other surgical incision into the skin or subcutaneous tissues | not specified | 5-892.09 |  | 
																			
											| Other surgical incision into the skin or subcutaneous tissues | not specified | 5-892.0g |  | 
																			
											|  | not specified | 5-896.1b |  | 
																			
											| Simple surgical closure of the skin or the subcutaneous tissues after injuries, e.g. with a suture | not specified | 5-900.00 |  | 
																			
											| Simple surgical closure of the skin or the subcutaneous tissues after injuries, e.g. with a suture | not specified | 5-900.07 |  | 
																			
											| Simple surgical closure of the skin or the subcutaneous tissues after injuries, e.g. with a suture | not specified | 5-900.09 |  | 
																			
											| Simple surgical closure of the skin or the subcutaneous tissues after injuries, e.g. with a suture | not specified | 5-900.0e |  | 
																			
											| Simple surgical closure of the skin or the subcutaneous tissues after injuries, e.g. with a suture | not specified | 5-900.0f |  | 
																			
											| Temporary covering of soft tissue injuries with skin or artificial skin | not specified | 5-916.a0 |  | 
																			
											|  | not specified | 6-00b.f |  | 
																			
											|  | not specified | 8-017.0 |  | 
																			
											|  | not specified | 8-017.1 |  | 
																			
											| Removal of a foreign body by endoscopy | not specified | 8-100.41 |  | 
																			
											| Removal of a foreign body by endoscopy | not specified | 8-100.6 |  | 
																			
											| Removal of a foreign body by endoscopy | not specified | 8-100.8 |  | 
																			
											| Exchange or removal of a feeding tube inserted into the stomach through the skin | not specified | 8-123.0 |  | 
																			
											| Injection or administration of medicines into the urinary bladder | not specified | 8-132.0 |  | 
																			
											| Injection or administration of medicines into the urinary bladder | not specified | 8-132.3 |  | 
																			
											| Exchange or removal of a urinary catheter through the abdominal wall | not specified | 8-133.0 |  | 
																			
											| Exchange or removal of a urinary catheter through the abdominal wall | not specified | 8-133.1 |  | 
																			
											| Insertion, exchange or removal of a ureteral stent | not specified | 8-137.00 |  | 
																			
											| Insertion of a small tube (cannula) or catheter into the space between the lungs and ribs for the drainage of fluid | not specified | 8-144.0 |  | 
																			
											| Treatment by the targeted insertion of a needle into the abdominal cavity with subsequent administration or removal of substances, e.g. fluid | not specified | 8-153 |  | 
																			
											| Dressings for large areas of skin or serious skin diseases | not specified | 8-191.20 |  | 
																			
											|  | not specified | 8-192.1f |  | 
																			
											|  | not specified | 8-192.x9 |  | 
																			
											|  | not specified | 8-192.xg |  | 
																			
											| Others therapeutic procedures to influence the immune system | not specified | 8-547.1 |  | 
																			
											| Treatment of cardiac arrhythmias with electric shocks - defibrillation | not specified | 8-640.x |  | 
																			
											| Temporary stimulation of the heart rhythm by an external cardiac pacemaker | not specified | 8-641 |  | 
																			
											| Transfusion of blood, red blood cells or platelets from a donor to a recipient | not specified | 8-800.g0 |  | 
																			
											| Transfusion of other plasma components or genetically engineered blood proteins | not specified | 8-812.51 |  | 
																			
											| Insertion or exchange of a tube (catheter) in a large vein | not specified | 8-831.0 |  | 
																			
											|  | not specified | 8-831.02 |  | 
																			
											|  | not specified | 8-831.04 |  | 
																			
											| Intensive care monitoring of respiration, the heart and the circulation with measurement of the pressure in the superior vena cava (central venous pressure) | not specified | 8-931.1 |  | 
																			
											| Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) | not specified | 8-987.00 |  | 
																			
											| Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) | not specified | 8-987.01 |  | 
																			
											| Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) | not specified | 8-987.02 |  | 
																			
											| Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) | not specified | 8-987.10 |  | 
																			
											|  | not specified | 8-98g.01 |  | 
																			
											|  | not specified | 8-98g.14 |  |