| Service | Number of cases | OPS key | Info | 
																			
											| Computed tomography (CT) of the head without contrast medium | 477 | 3-200 |  | 
																			
											| Treatment by specific positioning of the patient in bed, e.g. positioning in a sling table or special bed | 473 | 8-390.1 |  | 
																			
											| Measurement of the brain waves - EEG | 392 | 1-207.0 |  | 
																			
											| Evaluation of swallowing with the help of a tube-shaped instrument with a camera mounted at the end (endoscope) | 186 | 1-613 |  | 
																			
											| Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery | 163 | 8-552.9 |  | 
																			
											| Complex differential diagnostic sonography of the vascular system with quantitative evaluation | 135 | 3-035 |  | 
																			
											| Examination of the oesophagus, stomach and duodenum by endoscopy | 127 | 1-632.0 |  | 
																			
											| Surgical insertion of a tube into the stomach through the abdominal wall for artificial feeding | 104 | 5-431.20 |  | 
																			
											| Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery | 101 | 8-552.7 |  | 
																			
											| Measurement of the electrical activity of the heart without a tube (catheter) inserted into the heart via an artery | 92 | 1-266.x |  | 
																			
											| Examination of nerve conduction - ENG | 89 | 1-206 |  | 
																			
											| Treatment of physically or functionally induced disorders of speech, language, the voice or swallowing | 86 | 9-320 |  | 
																			
											| 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 | 83 | 8-930 |  | 
																			
											| Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery | 62 | 8-552.8 |  | 
																			
											| Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery | 59 | 8-552.5 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 54 | 1-208.2 |  | 
																			
											| Examination of the larynx by endoscopy | 53 | 1-610.0 |  | 
																			
											| Examination of the trachea and the bronchi by endoscopy | 53 | 1-620.00 |  | 
																			
											| Measurement of the electrical activity of the muscles - EMG | 48 | 1-205 |  | 
																			
											| Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery | 39 | 8-552.6 |  | 
																			
											| Ultrasound of the heart (echocardiography) through the oesophagus - TEE | 34 | 3-052 |  | 
																			
											|  | 34 | 9-984.7 |  | 
																			
											| Reconstructive operations on the trachea | 33 | 5-316.2 |  | 
																			
											|  | 32 | 8-831.20 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 31 | 1-208.4 |  | 
																			
											| Examination of the cerebrospinal fluid spaces | 30 | 1-204.2 |  | 
																			
											|  | 29 | 8-718.82 |  | 
																			
											|  | 29 | 8-831.00 |  | 
																			
											| Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery | 23 | 8-552.0 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | 20 | 8-980.20 |  | 
																			
											|  | 19 | 8-718.83 |  | 
																			
											| Surgical removal of diseased tissue from the skin or subcutaneous tissues | 18 | 5-894.05 |  | 
																			
											| Transfusion of blood, red blood cells or platelets from a donor to a recipient | 17 | 8-800.c0 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | 17 | 8-980.10 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | 17 | 8-980.11 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 16 | 1-208.6 |  | 
																			
											|  | 16 | 9-984.8 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 13 | 1-208.0 |  | 
																			
											| Administration of medicines in accordance with List 3 of the procedures list | 13 | 6-003.8 |  | 
																			
											| Treatment by injecting a medicine into an organ or tissue, or removal of excess fluid (effusion) e.g. from the joints | 13 | 8-020.x |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | 13 | 8-980.0 |  | 
																			
											| Injection or administration of medicines into the urinary bladder | 12 | 8-132.3 |  | 
																			
											| Treatment procedure to maintain and encourage practical everyday and social skills - psychosocial intervention | 12 | 9-401.40 |  | 
																			
											| Magnetic resonance imaging (MRI) of the head without contrast medium | 11 | 3-800 |  | 
																			
											| Treatment by the targeted insertion of a needle into the chest with subsequent administration or removal of substances, e.g. fluid | 10 | 8-152.1 |  | 
																			
											| Cardiac or cardiopulmonary resuscitation | 10 | 8-771 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | 10 | 8-980.21 |  | 
																			
											| Exchange or removal of a feeding tube inserted into the stomach through the skin | 9 | 8-123.1 |  | 
																			
											| Insertion or exchange of a tube (catheter) in a large vein | 9 | 8-831.2 |  | 
																			
											| Specific psychotherapeutic procedure where emphasis is placed on thinking, learning and behaviour - neuropsychological therapy | 9 | 9-404.2 |  | 
																			
											|  | 9 | 9-984.6 |  | 
																			
											| Examination of the large intestine by endoscopy - colonoscopy | 8 | 1-650.2 |  | 
																			
											| Intensive care monitoring of respiration, the heart and the circulation with measurement of the pressure in the superior vena cava (central venous pressure) | 8 | 8-931.0 |  | 
																			
											|  | 7 | 1-717.1 |  | 
																			
											| Insertion of a tube into the trachea for ventilation - intubation | 7 | 8-701 |  | 
																			
											|  | 7 | 8-718.81 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | 7 | 8-980.30 |  | 
																			
											| Specific psychotherapeutic procedure where emphasis is placed on thinking, learning and behaviour - neuropsychological therapy | 7 | 9-404.0 |  | 
																			
											| Specific psychotherapeutic procedure where emphasis is placed on thinking, learning and behaviour - neuropsychological therapy | 7 | 9-404.1 |  | 
																			
											|  | 7 | 9-984.9 |  | 
																			
											|  | 7 | 9-984.a |  | 
																			
											| Investigation of the activity of the heart and lungs during sleep | 6 | 1-791 |  | 
																			
											| Magnetic resonance imaging (MRI) of the head with contrast medium | 6 | 3-820 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | 6 | 8-980.31 |  | 
																			
											| Examination of the oesophagus and the stomach by endoscopy | 5 | 1-631.0 |  | 
																			
											| (Neuro-)psychological assessment or establishing the psychosocial background such as financial, occupational and family situation | 5 | 1-901.0 |  | 
																			
											| Assessment of perception and behaviour by means of standardised tests | 5 | 1-902.0 |  | 
																			
											| Computed tomography (CT) of the abdomen without contrast medium | 5 | 3-207 |  | 
																			
											| Quantitative analysis of specific values such as organ function or blood flow rate | 5 | 3-993 |  | 
																			
											| Treatment by washing out (irrigating) the ear | 5 | 8-171.0 |  | 
																			
											|  | 5 | 8-718.84 |  | 
																			
											| Examination of the large intestine by endoscopy - colonoscopy | 4 | 1-650.1 |  | 
																			
											| Temporary covering of soft tissue injuries with skin or artificial skin | 4 | 5-916.ax |  | 
																			
											| Administration of medicines in accordance with List 3 of the procedures list | 4 | 6-003.kd |  | 
																			
											| Exchange or removal of a feeding tube inserted into the stomach through the skin | 4 | 8-123.0 |  | 
																			
											| Exchange or removal of a urinary catheter through the abdominal wall | 4 | 8-133.0 |  | 
																			
											| Insertion of a small tube (cannula) or catheter into the space between the lungs and ribs for the drainage of fluid | 4 | 8-144.2 |  | 
																			
											|  | 4 | 9-984.b |  | 
																			
											| Measurement of the brain waves - EEG | not specified | 1-207.x |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | not specified | 1-208.3 |  | 
																			
											|  | not specified | 1-20d.1 |  | 
																			
											| Taking a tissue sample (biopsy) of the lower digestive tract by endoscopy | not specified | 1-444.7 |  | 
																			
											| Examination of the trachea and the bronchi by endoscopy | not specified | 1-620.01 |  | 
																			
											| Examination of the oesophagus by endoscopy | not specified | 1-630.0 |  | 
																			
											| Examination of the oesophagus, stomach and duodenum by endoscopy | not specified | 1-632.1 |  | 
																			
											| Examination of the oesophagus, stomach and duodenum by endoscopy | not specified | 1-632.x |  | 
																			
											| Examination of the large intestine by endoscopy - colonoscopy | not specified | 1-650.0 |  | 
																			
											| Examination of the rectum by endoscopy | not specified | 1-654.0 |  | 
																			
											| Examination of the urethra and the urinary bladder by endoscopy | not specified | 1-661 |  | 
																			
											|  | not specified | 1-717.0 |  | 
																			
											| Examination of the space between the lungs and ribs by taking a sample of fluid or tissue with a needle | not specified | 1-844 |  | 
																			
											| 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 kidney and urinary tract with contrast medium | not specified | 3-13d.5 |  | 
																			
											| Computed tomography (CT) of the neck without contrast medium | not specified | 3-201 |  | 
																			
											| Computed tomography (CT) of the chest without contrast medium | not specified | 3-202 |  | 
																			
											| Computed tomography (CT) of the spine and the spinal cord without contrast medium | not specified | 3-203 |  | 
																			
											| Computed tomography of the head with contrast medium | not specified | 3-220 |  | 
																			
											| Computed tomography of the neck with contrast medium | not specified | 3-221 |  | 
																			
											| Computed tomography of the chest with contrast medium | not specified | 3-222 |  | 
																			
											| Computed tomography of the abdomen with contrast medium | not specified | 3-225 |  | 
																			
											| Magnetic resonance imaging (MRI) of the neck without contrast medium | not specified | 3-801 |  | 
																			
											| Magnetic resonance imaging (MRI) of the spine and spinal cord without contrast medium | not specified | 3-802 |  | 
																			
											| Magnetic resonance imaging (MRI) of the spine and spinal cord with contrast medium | not specified | 3-823 |  | 
																			
											| Computer-assisted analysis of the images with 3D-analysis | not specified | 3-990 |  | 
																			
											| Use of an imaging procedure during an operation | not specified | 3-992 |  | 
																			
											| Insertion of a temporary, artificial tracheal opening | not specified | 5-311.1 |  | 
																			
											| Insertion of a permanent, artificial tracheal opening | not specified | 5-312.0 |  | 
																			
											| Surgical incision into the intestine | not specified | 5-450.3 |  | 
																			
											| 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 | 5-452.62 |  | 
																			
											| Other operations on the intestine | not specified | 5-469.d3 |  | 
																			
											| Other operations on the intestine | not specified | 5-469.e3 |  | 
																			
											| Other operations on the rectum | not specified | 5-489.e |  | 
																			
											| Surgical creation of a connection between the urinary bladder and skin of the abdomen for artificial urinary drainage | not specified | 5-572.1 |  | 
																			
											| Temporary covering of soft tissue injuries with skin or artificial skin | not specified | 5-916.a5 |  | 
																			
											| Premature termination of an operation (operation not carried out completely) | not specified | 5-995 |  | 
																			
											| Administration of medicines in accordance with List 1 of the procedures list | not specified | 6-001.hd |  | 
																			
											| Administration of medicines in accordance with List 3 of the procedures list | not specified | 6-003.k2 |  | 
																			
											| Administration of medicines in accordance with List 3 of the procedures list | not specified | 6-003.k3 |  | 
																			
											| Administration of medicines in accordance with List 3 of the procedures list | not specified | 6-003.k4 |  | 
																			
											| Administration of medicines in accordance with List 3 of the procedures list | not specified | 6-003.k5 |  | 
																			
											| Administration of medicines in accordance with List 3 of the procedures list | not specified | 6-003.k6 |  | 
																			
											| Administration of medicines in accordance with List 3 of the procedures list | not specified | 6-003.k8 |  | 
																			
											| Administration of medicines in accordance with List 3 of the procedures list | not specified | 6-003.ka |  | 
																			
											| Administration of medicines in accordance with List 3 of the procedures list | not specified | 6-003.kc |  | 
																			
											| Administration of medicines in accordance with List 3 of the procedures list | not specified | 6-003.kf |  | 
																			
											| Administration of medicines in accordance with List 3 of the procedures list | not specified | 6-003.kg |  | 
																			
											| Administration of medicines according to List 5 of the Catalogue of Procedures | not specified | 6-005.n4 |  | 
																			
											| Administration of medicines according to List 5 of the Catalogue of Procedures | not specified | 6-005.n7 |  | 
																			
											| Insertion or exchange of a tube inserted into the small intestine through the oesophagus | not specified | 8-125.2 |  | 
																			
											| Use of a system to collect stools | not specified | 8-128 |  | 
																			
											| Insertion, exchange or removal of a ureteral stent | not specified | 8-137.10 |  | 
																			
											| 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 |  | 
																			
											| Insertion of a small tube (cannula) or catheter into the space between the lungs and ribs for the drainage of fluid | not specified | 8-144.1 |  | 
																			
											| 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 |  | 
																			
											| Specific dressing techniques | not specified | 8-190.21 |  | 
																			
											| Specific dressing techniques | not specified | 8-190.23 |  | 
																			
											|  | not specified | 8-192.0b |  | 
																			
											|  | not specified | 8-192.1d |  | 
																			
											| Correction of a skeletal deformity manually or with appliances, with subsequent immobilisation of the affected part of the skeleton, e.g. with plaster cast | not specified | 8-211 |  | 
																			
											| Treatment by specific positioning of the patient in bed, e.g. positioning in a sling table or special bed | not specified | 8-390.0 |  | 
																			
											| Treatment of a nose bleed by packing with absorbent material (tamponade) | not specified | 8-500 |  | 
																			
											| Exchange or removal of the absorbent pack used to stop bleeding (tamponade) | not specified | 8-506 |  | 
																			
											| Treatment of cardiac arrhythmias with electric shocks - defibrillation | not specified | 8-640.0 |  | 
																			
											| Use of a face, nasal, or laryngeal mask for mechanical ventilation | not specified | 8-706 |  | 
																			
											|  | not specified | 8-713.0 |  | 
																			
											| Installation and adjustment of a mechanical ventilator for home use | not specified | 8-716.00 |  | 
																			
											| Installation and adjustment of a mechanical ventilator for home use | not specified | 8-716.01 |  | 
																			
											| Installation and adjustment of a mechanical ventilator for treatment of respiratory disorders during sleep | not specified | 8-717.0 |  | 
																			
											|  | not specified | 8-718.72 |  | 
																			
											|  | not specified | 8-718.80 |  | 
																			
											|  | not specified | 8-718.85 |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | not specified | 8-810.wa |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | not specified | 8-810.wd |  | 
																			
											| 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 |  | 
																			
											| 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 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | not specified | 8-980.40 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | not specified | 8-980.41 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | not specified | 8-980.51 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | not specified | 8-980.60 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | not specified | 8-980.61 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | not specified | 8-980.7 |  |