| Service | Number of cases | OPS key | Info | 
																			
											| Examination of the trachea and the bronchi by endoscopy | 875 | 1-620.00 |  | 
																			
											| Computed tomography (CT) of the head without contrast medium | 568 | 3-200 |  | 
																			
											| 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 | 353 | 8-930 |  | 
																			
											| Measurement of the brain waves - EEG | 333 | 1-207.0 |  | 
																			
											| Treatment by specific positioning of the patient in bed, e.g. positioning in a sling table or special bed | 301 | 8-390.1 |  | 
																			
											| Evaluation of swallowing with the help of a tube-shaped instrument with a camera mounted at the end (endoscope) | 257 | 1-613 |  | 
																			
											| Examination of the larynx by endoscopy | 206 | 1-610.0 |  | 
																			
											|  | 120 | 8-831.00 |  | 
																			
											| Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery | 112 | 8-552.7 |  | 
																			
											| Surgical insertion of a tube into the stomach through the abdominal wall for artificial feeding | 97 | 5-431.20 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 87 | 1-208.1 |  | 
																			
											| Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery | 82 | 8-552.9 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 81 | 1-208.3 |  | 
																			
											| Computed tomography of the abdomen with contrast medium | 71 | 3-225 |  | 
																			
											| Ultrasound of the heart (echocardiography) through the oesophagus - TEE | 69 | 3-052 |  | 
																			
											| Examination of the oesophagus, stomach and duodenum by endoscopy | 65 | 1-632.0 |  | 
																			
											| Transfusion of blood, red blood cells or platelets from a donor to a recipient | 61 | 8-800.c0 |  | 
																			
											| Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery | 60 | 8-552.8 |  | 
																			
											|  | 58 | 8-718.83 |  | 
																			
											|  | 46 | 8-718.82 |  | 
																			
											| Examination of the cerebrospinal fluid spaces | 45 | 1-204.2 |  | 
																			
											|  | 43 | 9-984.7 |  | 
																			
											| Use of a system to collect stools | 42 | 8-128 |  | 
																			
											| Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery | 37 | 8-552.5 |  | 
																			
											| Computed tomography of the chest with contrast medium | 35 | 3-222 |  | 
																			
											| Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery | 32 | 8-552.6 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | 32 | 8-980.11 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 30 | 1-208.2 |  | 
																			
											| Ultrasound of the abdominal cavity by means of endoscopy (laparoscopy) | 29 | 3-059 |  | 
																			
											| Surgical creation of a connection between the urinary bladder and skin of the abdomen for artificial urinary drainage | 28 | 5-572.1 |  | 
																			
											| Early postoperative treatment and early rehabilitation of patients with diseases of the nervous system or who have had neurosurgery | 27 | 8-552.0 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | 27 | 8-980.21 |  | 
																			
											| Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) | 27 | 8-987.13 |  | 
																			
											| Exchange or removal of a urinary catheter through the abdominal wall | 26 | 8-133.0 |  | 
																			
											|  | 26 | 8-718.84 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | 26 | 8-980.20 |  | 
																			
											|  | 26 | 9-984.8 |  | 
																			
											|  | 26 | 9-984.b |  | 
																			
											| Injection or administration of medicines into the urinary bladder | 24 | 8-132.3 |  | 
																			
											| Examination of the trachea and the bronchi by endoscopy | 23 | 1-620.01 |  | 
																			
											| Computed tomography (CT) of the chest without contrast medium | 20 | 3-202 |  | 
																			
											| Insertion of a small tube (cannula) or catheter into the space between the lungs and ribs for the drainage of fluid | 17 | 8-144.2 |  | 
																			
											| Complex differential diagnostic sonography of the vascular system with quantitative evaluation | 16 | 3-035 |  | 
																			
											| Computed tomography (CT) of the abdomen without contrast medium | 16 | 3-207 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | 14 | 8-980.31 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | 13 | 8-980.30 |  | 
																			
											| Examination of the oesophagus, stomach and duodenum by endoscopy | 12 | 1-632.1 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 11 | 1-208.0 |  | 
																			
											| Computed tomography (CT) of the blood vessels other than the main arteries and veins near the heart with contrast medium | 11 | 3-228 |  | 
																			
											| Others therapeutic procedures to influence the immune system | 11 | 8-547.x |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | 10 | 8-980.10 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | 9 | 8-980.0 |  | 
																			
											| Taking a tissue sample (biopsy) of the upper digestive tract, biliary tract or the pancreas by endoscopy | 8 | 1-440.a |  | 
																			
											| Insertion of a small tube (cannula) or catheter into the space between the lungs and ribs for the drainage of fluid | 8 | 8-144.0 |  | 
																			
											|  | 8 | 9-984.9 |  | 
																			
											| Examination of the trachea and the bronchi by endoscopy | 7 | 1-620.0x |  | 
																			
											| Computed tomography of the head with contrast medium | 7 | 3-220 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | 7 | 8-980.40 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | 7 | 8-980.41 |  | 
																			
											| Installation and adjustment of a mechanical ventilator for home use | 6 | 8-716.01 |  | 
																			
											|  | 6 | 8-718.81 |  | 
																			
											| Measurement of the electrical activity of the heart without a tube (catheter) inserted into the heart via an artery | 5 | 1-266.0 |  | 
																			
											| Computed tomography (CT) of the pelvis without contrast medium | 5 | 3-206 |  | 
																			
											| 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 | 5 | 8-151.4 |  | 
																			
											| Keeping the respiratory tract open by means of a tube through the mouth or nose | 5 | 8-700.1 |  | 
																			
											|  | 5 | 8-713.0 |  | 
																			
											|  | 5 | 8-718.85 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | 5 | 8-980.50 |  | 
																			
											| Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) | 5 | 8-987.10 |  | 
																			
											| Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) | 5 | 8-987.12 |  | 
																			
											|  | 5 | 9-984.6 |  | 
																			
											|  | 5 | 9-984.a |  | 
																			
											| Complex differential diagnostic sonography using Tissue Doppler Imaging [TDI] and deformation analysis of tissue [speckle tracking] | 4 | 3-034 |  | 
																			
											| Insertion of a temporary, artificial tracheal opening | 4 | 5-311.0 |  | 
																			
											| Administration of medicines in accordance with List 3 of the procedures list | 4 | 6-003.8 |  | 
																			
											| Injection or administration of medicines into the urinary bladder | 4 | 8-132.2 |  | 
																			
											| 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 | 4 | 8-151.2 |  | 
																			
											| Installation and adjustment of a mechanical ventilator for home use | 4 | 8-716.00 |  | 
																			
											| Cardiac or cardiopulmonary resuscitation | 4 | 8-771 |  | 
																			
											| Examination of nerve conduction - ENG | not specified | 1-206 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | not specified | 1-208.6 |  | 
																			
											| Examination of the left side of the heart with a tube (catheter) inserted into the heart via an artery | not specified | 1-275.5 |  | 
																			
											| Investigation of urinary flow and bladder emptying | not specified | 1-334.2 |  | 
																			
											| Taking a tissue sample (biopsy) of hormone-producing organs through the skin, guided by imaging procedures such as ultrasound | not specified | 1-407.2 |  | 
																			
											| Taking a tissue sample (biopsy) of the lower digestive tract by endoscopy | not specified | 1-444.7 |  | 
																			
											| Examination of the oesophagus and the stomach by endoscopy | not specified | 1-631.0 |  | 
																			
											| Examination of the duodenum by endoscopy | not specified | 1-635.0 |  | 
																			
											| Examination of the upper digestive tract by endoscopy through an artificial bowel opening (ostomy) | not specified | 1-638.2 |  | 
																			
											| 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 |  | 
																			
											| Examination of the large intestine by endoscopy - colonoscopy | not specified | 1-650.2 |  | 
																			
											| Examination of the anus and rectum by endoscopy | not specified | 1-653 |  | 
																			
											| Examination of the urethra and the urinary bladder by endoscopy | not specified | 1-661 |  | 
																			
											| Examination of the space between the lungs and ribs by taking a sample of fluid or tissue with a needle | not specified | 1-844 |  | 
																			
											|  | not specified | 1-999.40 |  | 
																			
											| Ultrasound of the oral cavity and the oral pharynx, through the mouth | not specified | 3-050 |  | 
																			
											| Ultrasound of the biliary tract with access through the oesophagus | not specified | 3-055.0 |  | 
																			
											| Ultrasound of the biliary tract with access through the oesophagus | not specified | 3-055.1 |  | 
																			
											| Ultrasound of the urinary bladder and the urethra with access through the urethra or anus | not specified | 3-05b.1 |  | 
																			
											| 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 |  | 
																			
											| Other computed tomography (CT) without contrast medium | not specified | 3-20x |  | 
																			
											| Computed tomography of the neck with contrast medium | not specified | 3-221 |  | 
																			
											| Computed tomography (CT) of the spine and the spinal cord with contrast medium | not specified | 3-223 |  | 
																			
											| Computed tomography (CT) of the musculoskeletal system with contrast medium | not specified | 3-227 |  | 
																			
											| 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 |  | 
																			
											| Quantitative analysis of specific values such as organ function or blood flow rate | not specified | 3-993 |  | 
																			
											| Insertion of a permanent, artificial tracheal opening | not specified | 5-312.0 |  | 
																			
											| Reconstructive operations on the trachea | not specified | 5-316.2 |  | 
																			
											| Surgical insertion of a tube into the stomach through the abdominal wall for artificial feeding | not specified | 5-431.2x |  | 
																			
											| 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 |  | 
																			
											| Other operations on the intestine | not specified | 5-469.d3 |  | 
																			
											| Other surgical incision into the skin or subcutaneous tissues | not specified | 5-892.0f |  | 
																			
											| Other surgical incision into the skin or subcutaneous tissues | not specified | 5-892.15 |  | 
																			
											| Surgical removal of diseased tissue from the skin or subcutaneous tissues | not specified | 5-894.04 |  | 
																			
											| Operation on the nails | not specified | 5-898.4 |  | 
																			
											| Administration of medicines in accordance with List 2 of the procedures list | not specified | 6-002.p2 |  | 
																			
											| Administration of medicines in accordance with List 2 of the procedures list | not specified | 6-002.p3 |  | 
																			
											| Administration of medicines in accordance with List 2 of the procedures list | not specified | 6-002.p5 |  | 
																			
											| Administration of medicines in accordance with List 2 of the procedures list | not specified | 6-002.rc |  | 
																			
											|  | not specified | 8-017.2 |  | 
																			
											| Exchange or removal of a feeding tube inserted into the stomach through the skin | not specified | 8-123.1 |  | 
																			
											| Injection or administration of medicines into the urinary bladder | not specified | 8-132.1 |  | 
																			
											| 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 chest with subsequent administration or removal of substances, e.g. fluid | not specified | 8-152.1 |  | 
																			
											| Treatment by the targeted insertion of a needle into a joint with subsequent administration or removal of substances, e.g. fluid | not specified | 8-158.h |  | 
																			
											| Specific dressing techniques | not specified | 8-190.20 |  | 
																			
											| Specific dressing techniques | not specified | 8-190.21 |  | 
																			
											| Specific dressing techniques | not specified | 8-190.23 |  | 
																			
											|  | not specified | 8-192.05 |  | 
																			
											|  | not specified | 8-192.0d |  | 
																			
											|  | not specified | 8-192.0f |  | 
																			
											|  | not specified | 8-192.1d |  | 
																			
											|  | not specified | 8-192.y |  | 
																			
											| Others therapeutic procedures to influence the immune system | not specified | 8-547.30 |  | 
																			
											| Others therapeutic procedures to influence the immune system | not specified | 8-547.31 |  | 
																			
											| Insertion of a tube into the trachea for ventilation - intubation | not specified | 8-701 |  | 
																			
											| Use of a face, nasal, or laryngeal mask for mechanical ventilation | not specified | 8-706 |  | 
																			
											| Installation and adjustment of a mechanical ventilator for home use | not specified | 8-716.02 |  | 
																			
											|  | not specified | 8-718.72 |  | 
																			
											|  | not specified | 8-718.80 |  | 
																			
											|  | not specified | 8-718.86 |  | 
																			
											|  | not specified | 8-718.92 |  | 
																			
											| Transfusion of blood, red blood cells or platelets from a donor to a recipient | not specified | 8-800.c1 |  | 
																			
											| Transfusion of blood, red blood cells or platelets from a donor to a recipient | not specified | 8-800.g0 |  | 
																			
											| Insertion or exchange of a tube (catheter) in a large vein | not specified | 8-831.2 |  | 
																			
											|  | not specified | 8-831.20 |  | 
																			
											|  | not specified | 8-831.22 |  | 
																			
											| Anaesthesia with administration of an anaesthetic into a vein | not specified | 8-900 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | not specified | 8-980.51 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | not specified | 8-980.61 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | not specified | 8-980.7 |  | 
																			
											| Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) | not specified | 8-987.11 |  | 
																			
											|  | not specified | 8-98g.10 |  | 
																			
											|  | not specified | 8-98g.11 |  | 
																			
											|  | not specified | 8-98g.12 |  | 
																			
											|  | not specified | 8-98g.13 |  |