| Service | Number of cases | OPS key | Info | 
																			
											| Computer-assisted analysis of the images with 3D-analysis | 16.503 | 3-990 |  | 
																			
											| Computed tomography (CT) of the head without contrast medium | 6.086 | 3-200 |  | 
																			
											| Computed tomography of the abdomen with contrast medium | 2.402 | 3-225 |  | 
																			
											| Computed tomography of the chest with contrast medium | 2.052 | 3-222 |  | 
																			
											| Magnetic resonance imaging (MRI) of the head without contrast medium | 1.938 | 3-800 |  | 
																			
											| Computed tomography (CT) of the spine and the spinal cord without contrast medium | 1.539 | 3-203 |  | 
																			
											| Computed tomography of the pelvis with contrast medium | 1.390 | 3-226 |  | 
																			
											| Magnetic resonance imaging (MRI) of the blood vessels apart from main arteries and veins without contrast medium | 1.305 | 3-808 |  | 
																			
											| Computed tomography (CT) of the pelvis without contrast medium | 1.075 | 3-206 |  | 
																			
											| Computed tomography of the head with contrast medium | 991 | 3-220 |  | 
																			
											| Computed tomography (CT) of the abdomen without contrast medium | 921 | 3-207 |  | 
																			
											| Magnetic resonance imaging (MRI) of the spine and spinal cord without contrast medium | 806 | 3-802 |  | 
																			
											| Magnetic resonance imaging (MRI) of the head with contrast medium | 805 | 3-820 |  | 
																			
											| Other special procedure with the help of computed tomography (CT) | 572 | 3-24x |  | 
																			
											| Magnetic resonance imaging (MRI) of the abdominal cavity without contrast medium | 388 | 3-804 |  | 
																			
											| Magnetic resonance imaging (MRI) of the spine and spinal cord with contrast medium | 385 | 3-823 |  | 
																			
											| Computed tomography (CT) of the chest without contrast medium | 338 | 3-202 |  | 
																			
											| Additional information on materials used | 276 | 8-83b.c6 |  | 
																			
											| Magnetic resonance imaging (MRI) of the abdominal cavity with contrast medium | 273 | 3-825 |  | 
																			
											| Computed tomography (CT) of the blood vessels other than the main arteries and veins near the heart with contrast medium | 268 | 3-228 |  | 
																			
											| Computed tomography (CT) of the musculoskeletal system without contrast medium | 267 | 3-205 |  | 
																			
											| X-rays of the arteries in the pelvis with contrast medium | 236 | 3-605 |  | 
																			
											| X-rays of the arteries of the neck with contrast medium | 212 | 3-601 |  | 
																			
											| X-rays of the arteries in the head with contrast medium | 196 | 3-600 |  | 
																			
											| Computed tomography of the neck with contrast medium | 194 | 3-221 |  | 
																			
											| Magnetic resonance imaging (MRI) of the pelvis with contrast medium | 183 | 3-82a |  | 
																			
											| X-rays of small arteries with contrast medium | 174 | 3-608 |  | 
																			
											| Magnetic resonance imaging (MRI) of the pelvis without contrast medium | 161 | 3-805 |  | 
																			
											| Computed tomography (CT) of the spine and the spinal cord with contrast medium | 112 | 3-223 |  | 
																			
											| X-rays of the breast | 107 | 3-100.0 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | 107 | 8-836.80 |  | 
																			
											| Magnetic resonance imaging (MRI) of the chest with contrast medium | 102 | 3-822 |  | 
																			
											|  | 102 | 8-83b.87 |  | 
																			
											|  | 96 | 8-831.03 |  | 
																			
											| Magnetic resonance imaging (MRI) of the heart with contrast medium | 94 | 3-824.0 |  | 
																			
											| X-rays of the arteries in the legs with contrast medium | 77 | 3-607 |  | 
																			
											| Pain control by injecting an anaesthetic around a nerve root or nerve close to the spine | 69 | 8-914.12 |  | 
																			
											| Additional information on materials used | 67 | 8-83b.84 |  | 
																			
											| Magnetic resonance imaging (MRI) of the spinal canal with contrast medium | 65 | 3-841 |  | 
																			
											| X-rays of the breast | 54 | 3-100.1 |  | 
																			
											| X-rays of the arteries in the abdomen with contrast medium | 49 | 3-604 |  | 
																			
											| Computed tomography (CT) of the heart without contrast medium | 46 | 3-204 |  | 
																			
											| Magnetic resonance imaging (MRI) of the neck without contrast medium | 45 | 3-801 |  | 
																			
											| Magnetic resonance imaging (MRI) of the musculoskeletal system without contrast medium | 42 | 3-806 |  | 
																			
											| Magnetic resonance imaging (MRI) of the neck with contrast medium | 38 | 3-821 |  | 
																			
											| Magnetic resonance imaging (MRI) of the blood vessels apart from the main arteries and veins near the heart with contrast medium | 34 | 3-828 |  | 
																			
											| Surgical incision into the breast | 32 | 5-881.0 |  | 
																			
											| X-rays of the oesophagus with contrast medium | 31 | 3-137 |  | 
																			
											| Instillation into a body cavity and locally restricted treatment with chemotherapy drugs or agents that influence the immune system | 31 | 8-541.6 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | 31 | 8-836.9a |  | 
																			
											| Additional information on materials used | 31 | 8-83b.25 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | 30 | 8-836.0s |  | 
																			
											| Pain control by injecting an anaesthetic into a joint of the spine | 30 | 8-917.1x |  | 
																			
											| Magnetic resonance imaging (MRI) of the musculoskeletal system with contrast medium | 24 | 3-826 |  | 
																			
											| Additional information on materials used | 21 | 8-83b.70 |  | 
																			
											| Measurement of the mineral content of the bone - bone density measurement | 20 | 3-900 |  | 
																			
											| Additional information on materials used | 18 | 8-83b.85 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | 17 | 8-836.81 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | 17 | 8-836.m0 |  | 
																			
											| Additional information on materials used | 17 | 8-83b.36 |  | 
																			
											| Implantation of non-drug eluting tubing (stents) in blood vessels | 16 | 8-840.0s |  | 
																			
											| Computed tomography of the heart with contrast medium | 15 | 3-224.0 |  | 
																			
											| Additional information on materials used | 15 | 8-83b.71 |  | 
																			
											| Implantation of non-drug eluting tubing (stents) in blood vessels | 15 | 8-840.0m |  | 
																			
											| X-rays of the large intestine with contrast medium enema | 14 | 3-13a |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | 14 | 8-836.0m |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | 13 | 8-836.0q |  | 
																			
											| Implantation of non-drug eluting tubing (stents) in blood vessels | 13 | 8-840.0q |  | 
																			
											|  | 12 | 8-83b.88 |  | 
																			
											| Magnetic resonance imaging (MRI) of the breast without contrast medium | 11 | 3-807 |  | 
																			
											| Magnetic resonance imaging (MRI) of the breast with contrast medium | 11 | 3-827 |  | 
																			
											| Computed tomography (CT) of the musculoskeletal system with contrast medium | 10 | 3-227 |  | 
																			
											| Injection or administration of medicines into the urinary bladder | 10 | 8-132.x |  | 
																			
											| 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 | 10 | 8-930 |  | 
																			
											| Injection or administration of medicines into the urinary bladder | 9 | 8-132.1 |  | 
																			
											| Insertion of a small tube (cannula) or catheter into another organ or tissue for the drainage of fluid | 9 | 8-148.0 |  | 
																			
											| X-ray of the veins in a limb with contrast medium (phlebography) and demonstration of the drainage region | 8 | 3-614 |  | 
																			
											| Use of a face, nasal, or laryngeal mask for mechanical ventilation | 8 | 8-706 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | 8 | 8-836.0c |  | 
																			
											| Administration of medicines to sedate and eliminate pain | 8 | 8-903 |  | 
																			
											| Other operations on the intestine | 7 | 5-469.d3 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | 7 | 8-836.0k |  | 
																			
											|  | 7 | 8-98g.10 |  | 
																			
											| Examination of the cerebrospinal fluid spaces | 6 | 1-204.2 |  | 
																			
											|  | 6 | 1-999.40 |  | 
																			
											| Computed tomography (CT) of the neck without contrast medium | 6 | 3-201 |  | 
																			
											| X-rays of the veins in the neck and chest with contrast medium | 6 | 3-611.0 |  | 
																			
											| Magnetic resonance imaging of the chest without contrast medium (MRI) | 6 | 3-809 |  | 
																			
											| Magnetic resonance imaging (MRI) of the heart with contrast medium | 6 | 3-824.2 |  | 
																			
											| Other operations on the intestine | 6 | 5-469.e3 |  | 
																			
											| Taking a tissue sample (biopsy) of the respiratory tract through the skin, guided by imaging procedures such as ultrasound | 5 | 1-432.01 |  | 
																			
											| X-rays of the spinal canal with contrast medium | 5 | 3-130 |  | 
																			
											| Computed tomography (CT) of the spinal canal with contrast medium | 5 | 3-241 |  | 
																			
											| X-rays of the arteries in the arms with contrast medium | 5 | 3-606 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | 5 | 8-836.n2 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | 5 | 8-836.n5 |  | 
																			
											| Other treatment of a vessel with access via a tube (catheter) | 5 | 8-83c.60 |  | 
																			
											| Comprehensive pain control for acute pain | 5 | 8-919 |  | 
																			
											| Magnetic resonance imaging (MRI) of the biliary tract and pancreatic ducts with contrast medium | 4 | 3-843.0 |  | 
																			
											| Insertion of a small tube (cannula) or catheter into the space between the lungs and ribs for the drainage of fluid | 4 | 8-144.0 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | 4 | 8-836.mh |  | 
																			
											| Additional information on materials used | 4 | 8-83b.72 |  | 
																			
											| Additional information on materials used | 4 | 8-83b.86 |  | 
																			
											| Implantation of non-drug eluting tubing (stents) in blood vessels | 4 | 8-840.00 |  | 
																			
											|  | 4 | 8-84d.0s |  | 
																			
											| Measurement of the brain waves - EEG | not specified | 1-207.0 |  | 
																			
											| Measurement of the brain waves - EEG | not specified | 1-207.2 |  | 
																			
											| Examination of the right side of the heart with a tube (catheter) inserted into the heart via a vein | not specified | 1-273.6 |  | 
																			
											| Other investigations of the heart or blood vessels by means of a tube (catheter) | not specified | 1-279.0 |  | 
																			
											| Taking a tissue sample (biopsy) of lymph nodes, spleen or thymus gland through the skin, guided by imaging procedures such as ultrasound | not specified | 1-426.4 |  | 
																			
											| Taking a tissue sample (biopsy) of the respiratory tract through the skin, guided by imaging procedures such as ultrasound | not specified | 1-432.1 |  | 
																			
											| 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 upper digestive tract, biliary tract or the pancreas by endoscopy | not specified | 1-440.a |  | 
																			
											| Taking a tissue sample (biopsy) of the liver, biliary tract or the pancreas through the skin, guided by imaging procedures such as ultrasound | not specified | 1-442.0 |  | 
																			
											| Taking a tissue sample (biopsy) of the lower digestive tract by endoscopy | not specified | 1-444.6 |  | 
																			
											| Taking a tissue sample (biopsy) of bone without surgical incision, guided by imaging procedures such as ultrasound | not specified | 1-481.4 |  | 
																			
											| Taking a tissue sample (biopsy) of bone without surgical incision, guided by imaging procedures such as ultrasound | not specified | 1-481.5 |  | 
																			
											| Taking a tissue sample (biopsy) of muscle or soft tissue through the skin, guided by imaging procedures such as ultrasound | not specified | 1-492.4 |  | 
																			
											| Taking a tissue sample (biopsy) of other organs or tissues through the skin, guided by imaging procedures such as ultrasound | not specified | 1-494.2 |  | 
																			
											| Taking a tissue sample (biopsy) of other organs or tissues through the skin, guided by imaging procedures such as ultrasound | not specified | 1-494.8 |  | 
																			
											| 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 | 1-632.0 |  | 
																			
											| Examination of the small intestine by swallowing a capsule containing a camera | not specified | 1-63a |  | 
																			
											| 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 |  | 
																			
											| Medical monitoring of an infectious disease | not specified | 1-930.3 |  | 
																			
											| Ultrasound of the biliary tract with access through the oesophagus | not specified | 3-055.0 |  | 
																			
											| Ultrasound the pancreas with access through the oesophagus | not specified | 3-056 |  | 
																			
											| X-rays of the biliary tract with contrast medium | not specified | 3-13c.2 |  | 
																			
											| X-rays of the aortic arch with contrast medium | not specified | 3-602 |  | 
																			
											| Other X-rays of the arteries with contrast medium | not specified | 3-60x |  | 
																			
											| Other X-rays of the veins with contrast medium | not specified | 3-61x |  | 
																			
											| Surgical opening of the top of the skull | not specified | 5-010.10 |  | 
																			
											| Removal, exchange or correction of a pacemaker or defibrillator | not specified | 5-378.07 |  | 
																			
											| Other operations on blood vessels | not specified | 5-399.7 |  | 
																			
											| Surgical insertion of a tube into the stomach through the abdominal wall for artificial feeding | not specified | 5-431.x |  | 
																			
											| Other operations on the stomach | not specified | 5-449.d3 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | not specified | 5-452.60 |  | 
																			
											| 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 repair of a hernial protrusion of the stomach | not specified | 5-535.1 |  | 
																			
											| Surgical opening of the abdominal cavity or tissue lying behind (retroperitoneum) | not specified | 5-541.1 |  | 
																			
											| Other operations on the temporomandibular joint or bones of the face | not specified | 5-779.3 |  | 
																			
											| Surgical removal of bone tissue for purposes of transplantation | not specified | 5-783.01 |  | 
																			
											| Surgical removal of diseased intervertebral disc tissue | not specified | 5-831.9 |  | 
																			
											|  | not specified | 5-896.1d |  | 
																			
											| Simple surgical closure of the skin or the subcutaneous tissues after injuries, e.g. with a suture | not specified | 5-900.04 |  | 
																			
											| Temporary covering of soft tissue injuries with skin or artificial skin | not specified | 5-916.a0 |  | 
																			
											| Premature termination of an operation (operation not carried out completely) | not specified | 5-995 |  | 
																			
											| Injection or administration of medicines into the urinary bladder | not specified | 8-132.3 |  | 
																			
											| 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 |  | 
																			
											| Insertion of a small tube (cannula) or catheter in the kidney or urinary tract for the drainage of fluid other than urine | not specified | 8-147.0 |  | 
																			
											| Insertion of a small tube (cannula) or catheter into another organ or tissue for the drainage of fluid | not specified | 8-148.1 |  | 
																			
											| Insertion of a small tube (cannula) or catheter into another organ or tissue for the drainage of fluid | not specified | 8-148.x |  | 
																			
											| Specific dressing techniques | not specified | 8-190.20 |  | 
																			
											| Insertion of a tube into the trachea for ventilation - intubation | not specified | 8-701 |  | 
																			
											| 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.h0 |  | 
																			
											|  | not specified | 8-831.02 |  | 
																			
											|  | not specified | 8-831.04 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | not specified | 8-836.00 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | not specified | 8-836.08 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | not specified | 8-836.0p |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | not specified | 8-836.1k |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | not specified | 8-836.82 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | not specified | 8-836.8k |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | not specified | 8-836.ka |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | not specified | 8-836.ma |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | not specified | 8-836.mf |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | not specified | 8-836.n1 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | not specified | 8-836.n3 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | not specified | 8-836.n4 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | not specified | 8-836.n6 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | not specified | 8-836.n8 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | not specified | 8-836.nb |  | 
																			
											|  | not specified | 8-83b.89 |  | 
																			
											|  | not specified | 8-83b.e3 |  | 
																			
											| Additional information on materials used | not specified | 8-83b.n3 |  | 
																			
											| Other treatment of a vessel with access via a tube (catheter) | not specified | 8-83c.61 |  | 
																			
											| Implantation of non-drug eluting tubing (stents) in blood vessels | not specified | 8-840.0c |  | 
																			
											| Implantation of non-drug eluting tubing (stents) in blood vessels | not specified | 8-840.0p |  | 
																			
											| Implantation of non-drug eluting tubing (stents) in blood vessels | not specified | 8-840.18 |  | 
																			
											| Implantation of non-drug eluting tubing (stents) in blood vessels | not specified | 8-840.1p |  | 
																			
											| Implantation of non-drug eluting tubing (stents) in blood vessels | not specified | 8-840.1s |  | 
																			
											| Implantation of non-drug eluting tubing (stents) in blood vessels | not specified | 8-840.2s |  | 
																			
											| Implantation of drug eluting tubing (stents) in blood vessels | not specified | 8-841.00 |  | 
																			
											| Implantation of drug eluting tubing (stents) in blood vessels | not specified | 8-841.0h |  | 
																			
											| Implantation of self-expanding tubing (microstents) in blood vessels | not specified | 8-844.00 |  | 
																			
											|  | not specified | 8-84b.00 |  | 
																			
											|  | not specified | 8-84b.20 |  | 
																			
											|  | not specified | 8-84d.0c |  | 
																			
											|  | not specified | 8-84e.0m |  | 
																			
											| Procedure for dialysing the blood outside the body with removal of the poison over a concentration gradient - dialysis | not specified | 8-854.61 |  | 
																			
											| Procedure for dialysing the blood outside the body with removal of the poison over a concentration gradient - dialysis | not specified | 8-854.70 |  | 
																			
											| Procedure for dialysing the blood outside the body with removal of the poison over a concentration gradient - dialysis | not specified | 8-854.71 |  | 
																			
											| Pain control by injecting an anaesthetic around the autonomic (sympathetic) nervous system | not specified | 8-916.12 |  | 
																			
											| Pain control by injecting an anaesthetic into a joint of the spine | not specified | 8-917.13 |  | 
																			
											|  | not specified | 8-981.32 |  | 
																			
											|  | not specified | 8-981.33 |  | 
																			
											| Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) | not specified | 8-987.10 |  | 
																			
											|  | not specified | 8-98g.11 |  | 
																			
											|  | not specified | 8-98g.13 |  |