| Service | Number of cases | OPS key | Info | 
																			
											| Function-orientated physical exercises and uses | 1.158 | 8-561.1 |  | 
																			
											| Magnetic resonance imaging (MRI) of the head without contrast medium | 889 | 3-800 |  | 
																			
											| Examination of the cerebrospinal fluid spaces | 642 | 1-204.2 |  | 
																			
											| Magnetic resonance imaging (MRI) of the spine and spinal cord without contrast medium | 523 | 3-802 |  | 
																			
											| Measurement of the brain waves - EEG | 486 | 1-207.0 |  | 
																			
											| (Neuro-)psychological assessment or establishing the psychosocial background such as financial, occupational and family situation | 477 | 1-901.0 |  | 
																			
											| Examination of nerve conduction - ENG | 444 | 1-206 |  | 
																			
											| Computed tomography (CT) of the head without contrast medium | 354 | 3-200 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 248 | 1-208.2 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 232 | 1-208.4 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 225 | 1-208.6 |  | 
																			
											| Investigation of the activity of the heart and lungs during sleep | 224 | 1-791 |  | 
																			
											| Others therapeutic procedures to influence the immune system | 157 | 8-547.30 |  | 
																			
											| Computer-assisted analysis of the images with 3D-analysis | 144 | 3-990 |  | 
																			
											|  | 142 | 9-984.7 |  | 
																			
											|  | 142 | 9-984.8 |  | 
																			
											| Treatment of physically or functionally induced disorders of speech, language, the voice or swallowing | 121 | 9-320 |  | 
																			
											| Administration of medicines in accordance with List 3 of the procedures list | 107 | 6-003.8 |  | 
																			
											| Assessment of a mental illness or of the relationship between mental and physical problems | 105 | 1-900.0 |  | 
																			
											| Magnetic resonance imaging (MRI) of the head with contrast medium | 103 | 3-820 |  | 
																			
											| Measurement of the electrical activity of the muscles - EMG | 66 | 1-205 |  | 
																			
											| Investigation of the of the brain, heart, and muscle activity, and respiration during sleep | 60 | 1-790 |  | 
																			
											| Computed tomography (CT) of the blood vessels other than the main arteries and veins near the heart with contrast medium | 57 | 3-228 |  | 
																			
											|  | 54 | 9-984.9 |  | 
																			
											| Examination of the cerebrospinal fluid spaces | 45 | 1-204.1 |  | 
																			
											|  | 44 | 9-984.6 |  | 
																			
											| Computed tomography of the chest with contrast medium | 39 | 3-222 |  | 
																			
											| Measurement of the brain waves - EEG | 32 | 1-207.1 |  | 
																			
											| Computed tomography of the abdomen with contrast medium | 29 | 3-225 |  | 
																			
											| Computer assisted visualisation of body structures in 3 dimensions - virtual 3D reconstruction technique | 27 | 3-994 |  | 
																			
											| 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 | 27 | 8-151.4 |  | 
																			
											|  | 27 | 9-984.b |  | 
																			
											| Magnetic resonance imaging (MRI) of the spine and spinal cord with contrast medium | 26 | 3-823 |  | 
																			
											| 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 | 25 | 8-930 |  | 
																			
											| Quantitative analysis of specific values such as organ function or blood flow rate | 24 | 3-993 |  | 
																			
											| Interdisciplinary management other chronic illnesses | 24 | 8-97d.0 |  | 
																			
											| Treatment procedure to maintain and encourage practical everyday and social skills - psychosocial intervention | 24 | 9-401.00 |  | 
																			
											| Computed tomography (CT) of the spine and the spinal cord without contrast medium | 23 | 3-203 |  | 
																			
											| Computed tomography (CT) of the chest without contrast medium | 21 | 3-202 |  | 
																			
											|  | 19 | 8-98g.11 |  | 
																			
											| Magnetic resonance imaging (MRI) of the musculoskeletal system without contrast medium | 17 | 3-806 |  | 
																			
											| Measurement of the daytime tiredness or the maintenance of wakefulness - MSLT or MWT | 16 | 1-795 |  | 
																			
											| Interdisciplinary management other chronic illnesses | 16 | 8-97d.1 |  | 
																			
											| Treatment by specific positioning of the patient in bed, e.g. positioning in a sling table or special bed | 15 | 8-390.1 |  | 
																			
											| Ultrasound of the heart (echocardiography) through the oesophagus - TEE | 14 | 3-052 |  | 
																			
											| Treatment by specific positioning of the patient in bed, e.g. positioning in a sling table or special bed | 13 | 8-390.y |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | 13 | 8-810.w9 |  | 
																			
											|  | 13 | 9-984.a |  | 
																			
											| Computed tomography of the head with contrast medium | 11 | 3-220 |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | 9 | 8-810.wa |  | 
																			
											|  | 8 | 8-981.30 |  | 
																			
											| Magnetic resonance imaging (MRI) of the blood vessels apart from main arteries and veins without contrast medium | 7 | 3-808 |  | 
																			
											| Others therapeutic procedures to influence the immune system | 7 | 8-547.31 |  | 
																			
											| Interdisciplinary management other chronic illnesses | 7 | 8-97d.2 |  | 
																			
											| Computer-assisted analysis of the images with 4D-analysis | 6 | 3-991 |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | 6 | 8-810.w7 |  | 
																			
											|  | 6 | 8-98g.12 |  | 
																			
											| Evaluation of swallowing with the help of a tube-shaped instrument with a camera mounted at the end (endoscope) | 5 | 1-613 |  | 
																			
											| Magnetic resonance imaging (MRI) of the pelvis without contrast medium | 5 | 3-805 |  | 
																			
											| Installation and adjustment of a mechanical ventilator for treatment of respiratory disorders during sleep | 5 | 8-717.1 |  | 
																			
											|  | 5 | 8-981.33 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 4 | 1-208.x |  | 
																			
											| Measurement of the composition of respired air at rest and on physical exercise | 4 | 1-712 |  | 
																			
											|  | 4 | 8-981.32 |  | 
																			
											| Examination of the cerebrospinal fluid spaces | not specified | 1-204.0 |  | 
																			
											| Measurement of the brain waves - EEG | not specified | 1-207.2 |  | 
																			
											| Measurement of the brain waves - EEG | not specified | 1-207.x |  | 
																			
											| Other examination of the function of the nervous system | not specified | 1-20a.20 |  | 
																			
											| 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.a |  | 
																			
											| Taking a tissue sample (biopsy) of other organs or tissues through the skin, guided by imaging procedures such as ultrasound | not specified | 1-494.30 |  | 
																			
											| Examination of the oesophagus, stomach and duodenum by endoscopy | not specified | 1-632.0 |  | 
																			
											| Interdisciplinary investigation of pain | not specified | 1-910 |  | 
																			
											| X-rays of the breast | not specified | 3-100.0 |  | 
																			
											| X-rays of the spinal canal with contrast medium | not specified | 3-130 |  | 
																			
											| 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 |  | 
																			
											| Computed tomography (CT) of the abdomen without contrast medium | not specified | 3-207 |  | 
																			
											| Computed tomography of the neck with contrast medium | not specified | 3-221 |  | 
																			
											| Computed tomography of the pelvis with contrast medium | not specified | 3-226 |  | 
																			
											| Computed tomography (CT) of the spinal canal with contrast medium | not specified | 3-241 |  | 
																			
											| X-rays of the arteries in the head with contrast medium | not specified | 3-600 |  | 
																			
											| X-rays of the arteries of the neck with contrast medium | not specified | 3-601 |  | 
																			
											| Magnetic resonance imaging (MRI) of the neck without contrast medium | not specified | 3-801 |  | 
																			
											| Other magnetic resonance imaging (MRI) without contrast medium | not specified | 3-80x |  | 
																			
											| Magnetic resonance imaging (MRI) of the abdominal cavity with contrast medium | not specified | 3-825 |  | 
																			
											| Magnetic resonance imaging (MRI) of the musculoskeletal system with contrast medium | not specified | 3-826 |  | 
																			
											| Surgical incision into the eardrum (tympanic membrane) | not specified | 5-200.5 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the oesophagus | not specified | 5-422.52 |  | 
																			
											| Simple surgical closure of the skin or the subcutaneous tissues after injuries, e.g. with a suture | not specified | 5-900.04 |  | 
																			
											|  | not specified | 6-008.8 |  | 
																			
											| Treatment by injecting a medicine into an organ or tissue, or removal of excess fluid (effusion) e.g. from the joints | not specified | 8-020.8 |  | 
																			
											| 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 |  | 
																			
											| Treatment by specific positioning of the patient in bed, e.g. positioning in a sling table or special bed | not specified | 8-390.x |  | 
																			
											| Others therapeutic procedures to influence the immune system | not specified | 8-547.0 |  | 
																			
											| Keeping the respiratory tract open by means of a tube through the mouth or nose | not specified | 8-700.0 |  | 
																			
											| Cardiac or cardiopulmonary resuscitation | not specified | 8-771 |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | not specified | 8-810.w6 |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | not specified | 8-810.w8 |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | not specified | 8-810.wc |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | not specified | 8-810.wd |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | not specified | 8-810.we |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | not specified | 8-810.wf |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | not specified | 8-810.wj |  | 
																			
											|  | not specified | 8-831.02 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | not specified | 8-836.80 |  | 
																			
											| Additional information on materials used | not specified | 8-83b.50 |  | 
																			
											| Additional information on materials used | not specified | 8-83b.84 |  | 
																			
											|  | not specified | 8-83b.87 |  | 
																			
											| Additional information on materials used | not specified | 8-83b.c6 |  | 
																			
											| Implantation of non-drug eluting tubing (stents) in blood vessels | not specified | 8-840.0m |  | 
																			
											| Anaesthesia with administration of an anaesthetic into a vein | not specified | 8-900 |  | 
																			
											| Interdisciplinary management difficult-to-treat seizures (epilepsy) | not specified | 8-972.0 |  | 
																			
											| Interdisciplinary management difficult-to-treat seizures (epilepsy) | not specified | 8-972.1 |  | 
																			
											| Interdisciplinary management difficult-to-treat seizures (epilepsy) | not specified | 8-972.2 |  | 
																			
											|  | not specified | 8-981.31 |  | 
																			
											| Interdisciplinary end-of-life care | not specified | 8-982.1 |  | 
																			
											|  | not specified | 8-98g.10 |  | 
																			
											|  | not specified | 8-98g.13 |  | 
																			
											|  | not specified | 8-98g.14 |  |