| Service | Number of cases | OPS key | Info | 
																			
											| Computed tomography (CT) of the head without contrast medium | 197 | 3-200 |  | 
																			
											| Measurement of the brain waves - EEG | 159 | 1-207.0 |  | 
																			
											| 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 | 96 | 8-930 |  | 
																			
											| Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery | 79 | 8-552.9 |  | 
																			
											| (Neuro-)psychological assessment or establishing the psychosocial background such as financial, occupational and family situation | 49 | 1-901.0 |  | 
																			
											| Injection or administration of medicines into the urinary bladder | 48 | 8-132.1 |  | 
																			
											| Surgical insertion of a tube into the stomach through the abdominal wall for artificial feeding | 40 | 5-431.20 |  | 
																			
											| Magnetic resonance imaging (MRI) of the head without contrast medium | 33 | 3-800 |  | 
																			
											| Computed tomography of the chest with contrast medium | 32 | 3-222 |  | 
																			
											| Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery | 32 | 8-552.7 |  | 
																			
											|  | 32 | 9-984.7 |  | 
																			
											|  | 30 | 9-984.b |  | 
																			
											| Computed tomography of the abdomen with contrast medium | 28 | 3-225 |  | 
																			
											|  | 28 | 8-718.93 |  | 
																			
											| Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery | 26 | 8-552.8 |  | 
																			
											| Evaluation of swallowing with the help of a tube-shaped instrument with a camera mounted at the end (endoscope) | 25 | 1-613 |  | 
																			
											| Computed tomography (CT) of the chest without contrast medium | 22 | 3-202 |  | 
																			
											| Exchange or removal of a urinary catheter through the abdominal wall | 22 | 8-133.0 |  | 
																			
											|  | 21 | 8-718.92 |  | 
																			
											| Examination of nerve conduction - ENG | 17 | 1-206 |  | 
																			
											| Examination of the trachea and the bronchi by endoscopy | 16 | 1-620.00 |  | 
																			
											| Exchange or removal of a feeding tube inserted into the stomach through the skin | 16 | 8-123.1 |  | 
																			
											| Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) | 16 | 8-987.13 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 15 | 1-208.2 |  | 
																			
											| Computed tomography (CT) of the abdomen without contrast medium | 15 | 3-207 |  | 
																			
											| Computed tomography (CT) of the blood vessels other than the main arteries and veins near the heart with contrast medium | 15 | 3-228 |  | 
																			
											| Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery | 15 | 8-552.6 |  | 
																			
											| Filtration of antibodies from the blood | 15 | 8-821.11 |  | 
																			
											| Measurement of the electrical activity of the muscles - EMG | 14 | 1-205 |  | 
																			
											| Other computed tomography (CT) with contrast medium | 14 | 3-22x |  | 
																			
											| Magnetic resonance imaging (MRI) of the spine and spinal cord without contrast medium | 14 | 3-802 |  | 
																			
											| Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery | 13 | 8-552.5 |  | 
																			
											| Magnetic resonance imaging (MRI) of the head with contrast medium | 12 | 3-820 |  | 
																			
											| Other magnetic resonance imaging (MRI) with contrast medium | 11 | 3-82x |  | 
																			
											| Treatment of physically or functionally induced disorders of speech, language, the voice or swallowing | 11 | 9-320 |  | 
																			
											|  | 11 | 9-984.6 |  | 
																			
											| Magnetic resonance imaging (MRI) of the spine and spinal cord with contrast medium | 10 | 3-823 |  | 
																			
											|  | 10 | 8-98g.12 |  | 
																			
											| Computed tomography of the neck with contrast medium | 9 | 3-221 |  | 
																			
											| Administration of medicines in accordance with List 3 of the procedures list | 9 | 6-003.8 |  | 
																			
											| Use of a system to collect stools | 9 | 8-128 |  | 
																			
											| Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery | 9 | 8-552.0 |  | 
																			
											| Examination of the cerebrospinal fluid spaces | 8 | 1-204.2 |  | 
																			
											| Computed tomography of the head with contrast medium | 8 | 3-220 |  | 
																			
											| Transfusion of blood, red blood cells or platelets from a donor to a recipient | 8 | 8-800.c0 |  | 
																			
											| Quantitative analysis of specific values such as organ function or blood flow rate | 7 | 3-993 |  | 
																			
											| Examination of the oesophagus, stomach and duodenum by endoscopy | 6 | 1-632.0 |  | 
																			
											|  | 6 | 8-98g.13 |  | 
																			
											| Examination of the cerebrospinal fluid spaces | 5 | 1-204.1 |  | 
																			
											| X-rays of the pharynx (throat) with contrast medium | 5 | 3-134 |  | 
																			
											|  | 5 | 8-019 |  | 
																			
											| Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) | 5 | 8-987.11 |  | 
																			
											|  | 5 | 8-98g.11 |  | 
																			
											| Taking a tissue sample (biopsy) of the upper digestive tract, biliary tract or the pancreas by endoscopy | 4 | 1-440.9 |  | 
																			
											| Ultrasound of the heart (echocardiography) through the oesophagus - TEE | 4 | 3-052 |  | 
																			
											| Computer-assisted analysis of the images with 3D-analysis | 4 | 3-990 |  | 
																			
											| Insertion of a tube into the trachea for ventilation - intubation | 4 | 8-701 |  | 
																			
											|  | 4 | 8-718.95 |  | 
																			
											|  | 4 | 8-831.04 |  | 
																			
											|  | 4 | 9-984.8 |  | 
																			
											|  | 4 | 9-984.a |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | not specified | 1-208.0 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | not specified | 1-208.6 |  | 
																			
											| Taking a tissue sample (biopsy) of the upper digestive tract, biliary tract or the pancreas by endoscopy | not specified | 1-440.a |  | 
																			
											| Examination of the trachea and the bronchi by endoscopy | not specified | 1-620.01 |  | 
																			
											| Examination of the oesophagus and the stomach by endoscopy | not specified | 1-631.0 |  | 
																			
											| Examination of the space between the lungs and ribs by taking a sample of fluid or tissue with a needle | not specified | 1-844 |  | 
																			
											| 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 |  | 
																			
											| Computed tomography (CT) of the musculoskeletal system without contrast medium | not specified | 3-205 |  | 
																			
											| Computed tomography (CT) of the pelvis without contrast medium | not specified | 3-206 |  | 
																			
											| Other computed tomography (CT) without contrast medium | not specified | 3-20x |  | 
																			
											| Magnetic resonance imaging (MRI) of the musculoskeletal system without contrast medium | not specified | 3-806 |  | 
																			
											| Magnetic resonance imaging (MRI) of the musculoskeletal system with contrast medium | not specified | 3-826 |  | 
																			
											| Magnetic resonance imaging (MRI) of the pelvis with contrast medium | not specified | 3-82a |  | 
																			
											| Insertion of a permanent, artificial tracheal opening | not specified | 5-312.0 |  | 
																			
											| Creating a connection (shunt) between an artery and a vein | not specified | 5-392.10 |  | 
																			
											| Surgical creation of a connection between the urinary bladder and skin of the abdomen for artificial urinary drainage | not specified | 5-572.1 |  | 
																			
											| Administration of medicines in accordance with List 2 of the procedures list | not specified | 6-002.pc |  | 
																			
											| Administration of medicines in accordance with List 2 of the procedures list | not specified | 6-002.qb |  | 
																			
											| Administration of medicines according to List 5 of the Catalogue of Procedures | not specified | 6-005.n6 |  | 
																			
											|  | not specified | 6-008.ha |  | 
																			
											| Administration of medicines by medicine pumps into the cerebrospinal fluid system | not specified | 8-011.1 |  | 
																			
											| Insertion or exchange of a tube inserted into the small intestine through the oesophagus | not specified | 8-125.2 |  | 
																			
											| 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 | 8-133.1 |  | 
																			
											| Treatment by the targeted insertion of a needle into the brain, spinal cord or the eye with subsequent administration or removal of substances, e.g. fluid | not specified | 8-151.4 |  | 
																			
											| 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 |  | 
																			
											| Specific dressing techniques | not specified | 8-190.21 |  | 
																			
											| Specific dressing techniques | not specified | 8-190.23 |  | 
																			
											|  | not specified | 8-192.3d |  | 
																			
											|  | not specified | 8-192.3g |  | 
																			
											| Others therapeutic procedures to influence the immune system | not specified | 8-547.0 |  | 
																			
											| Others therapeutic procedures to influence the immune system | not specified | 8-547.31 |  | 
																			
											| Treatment by extreme cooling (hypothermia) to reduce the need for oxygen | not specified | 8-607.4 |  | 
																			
											|  | not specified | 8-713.0 |  | 
																			
											|  | not specified | 8-718.90 |  | 
																			
											|  | not specified | 8-718.91 |  | 
																			
											|  | not specified | 8-718.94 |  | 
																			
											| Cardiac or cardiopulmonary resuscitation | not specified | 8-771 |  | 
																			
											| Transfusion of blood, red blood cells or platelets from a donor to a recipient | not specified | 8-800.c1 |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | not specified | 8-810.wd |  | 
																			
											| Filtration of antibodies from the blood | not specified | 8-821.10 |  | 
																			
											| Insertion or exchange of a tube (catheter) in a large vein | not specified | 8-831.0 |  | 
																			
											|  | not specified | 8-831.00 |  | 
																			
											| Monitoring of the brain waves for more than 24 hours | not specified | 8-920 |  | 
																			
											| 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 | 8-931.0 |  | 
																			
											|  | not specified | 8-981.22 |  | 
																			
											| Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) | not specified | 8-987.10 |  | 
																			
											| Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) | not specified | 8-987.12 |  | 
																			
											|  | not specified | 8-98g.10 |  | 
																			
											|  | not specified | 8-98g.14 |  | 
																			
											|  | not specified | 9-984.9 |  |