| Service | Number of cases | OPS key | Info | 
																			
											| Treatment of physically or functionally induced disorders of speech, language, the voice or swallowing | 843 | 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 | 554 | 8-930 |  | 
																			
											| Examination of nerve conduction - ENG | 321 | 1-206 |  | 
																			
											| Measurement of the brain waves - EEG | 265 | 1-207.0 |  | 
																			
											|  | 236 | 8-981.20 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 209 | 1-208.2 |  | 
																			
											|  | 158 | 8-981.21 |  | 
																			
											|  | 132 | 9-984.7 |  | 
																			
											|  | 130 | 9-984.8 |  | 
																			
											| Treatment by injecting a medicine into an organ or tissue, or removal of excess fluid (effusion) e.g. from the joints | 72 | 8-020.8 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 69 | 1-208.4 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 50 | 1-208.6 |  | 
																			
											|  | 49 | 9-984.9 |  | 
																			
											|  | 37 | 9-984.6 |  | 
																			
											|  | 28 | 8-981.22 |  | 
																			
											|  | 26 | 9-984.a |  | 
																			
											| Examination of the oesophagus, stomach and duodenum by endoscopy | 24 | 1-632.0 |  | 
																			
											| Procedure for dialysing the blood outside the body with removal of the poison over a concentration gradient - dialysis | 23 | 8-854.2 |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | 19 | 8-810.wa |  | 
																			
											| 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 | 18 | 8-151.4 |  | 
																			
											| Measurement of the electrical activity of the muscles - EMG | 16 | 1-205 |  | 
																			
											|  | 14 | 8-98g.10 |  | 
																			
											| Measurement of the electrical activity of the heart without a tube (catheter) inserted into the heart via an artery | 12 | 1-266.0 |  | 
																			
											| Examination of the trachea and the bronchi by endoscopy | 12 | 1-620.00 |  | 
																			
											|  | 12 | 8-98g.11 |  | 
																			
											|  | 12 | 9-984.b |  | 
																			
											| Treatment by injecting a medicine into an organ or tissue, or removal of excess fluid (effusion) e.g. from the joints | 11 | 8-020.x |  | 
																			
											| Instillation into a body cavity and locally restricted treatment with chemotherapy drugs or agents that influence the immune system | 10 | 8-541.0 |  | 
																			
											|  | 9 | 8-192.0d |  | 
																			
											|  | 9 | 8-192.1g |  | 
																			
											| Treatment by specific positioning of the patient in bed, e.g. positioning in a sling table or special bed | 9 | 8-390.x |  | 
																			
											| Other resuscitation measures | 9 | 8-779 |  | 
																			
											|  | 9 | 8-981.23 |  | 
																			
											| Examination of the cerebrospinal fluid spaces | 8 | 1-204.1 |  | 
																			
											| Taking a tissue sample (biopsy) of the upper digestive tract, biliary tract or the pancreas by endoscopy | 8 | 1-440.a |  | 
																			
											| Use of a face, nasal, or laryngeal mask for mechanical ventilation | 8 | 8-706 |  | 
																			
											| Additional information on materials used | 8 | 8-83b.c6 |  | 
																			
											|  | 8 | 8-98f.0 |  | 
																			
											| Investigation of the activity of the heart and lungs during sleep | 7 | 1-791 |  | 
																			
											|  | 7 | 8-192.0g |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | 7 | 8-836.80 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | 7 | 8-980.0 |  | 
																			
											| Surgical insertion of a tube into the stomach through the abdominal wall for artificial feeding | 6 | 5-431.20 |  | 
																			
											| Simple surgical closure of the skin or the subcutaneous tissues after injuries, e.g. with a suture | 6 | 5-900.04 |  | 
																			
											| Insertion of a tube into the trachea for ventilation - intubation | 6 | 8-701 |  | 
																			
											|  | 6 | 8-831.00 |  | 
																			
											| Additional information on materials used | 6 | 8-83b.84 |  | 
																			
											|  | 6 | 8-83b.87 |  | 
																			
											| Transfusion of blood, red blood cells or platelets from a donor to a recipient | 5 | 8-800.c0 |  | 
																			
											|  | 5 | 8-98f.10 |  | 
																			
											| Other examination of the function of the nervous system | 4 | 1-20a.33 |  | 
																			
											| Examination of the trachea and the bronchi by endoscopy | 4 | 1-620.01 |  | 
																			
											|  | 4 | 8-017.0 |  | 
																			
											|  | 4 | 8-192.1d |  | 
																			
											|  | 4 | 8-192.1f |  | 
																			
											| Keeping the respiratory tract open by means of a tube through the mouth or nose | 4 | 8-700.1 |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | 4 | 8-810.wd |  | 
																			
											|  | 4 | 8-98g.12 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | not specified | 1-208.0 |  | 
																			
											| Other examination of the function of the nervous system | not specified | 1-20a.30 |  | 
																			
											| Measurement of hearing - audiometry | not specified | 1-242 |  | 
																			
											| Measurement of the electrical activity of the heart without a tube (catheter) inserted into the heart via an artery | not specified | 1-266.1 |  | 
																			
											| Examination of the left side of the heart with a tube (catheter) inserted into the heart via an artery | not specified | 1-275.0 |  | 
																			
											| Examination of the left side of the heart with a tube (catheter) inserted into the heart via an artery | not specified | 1-275.1 |  | 
																			
											| Examination of the left side of the heart with a tube (catheter) inserted into the heart via an artery | not specified | 1-275.5 |  | 
																			
											| Taking a tissue sample (biopsy) of nerves outside the brain and spinal cord through a surgical incision | not specified | 1-513.9 |  | 
																			
											| Examination of the larynx by endoscopy | not specified | 1-610.0 |  | 
																			
											| Examination of the nose by endoscopy | not specified | 1-612 |  | 
																			
											| 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 urethra and the urinary bladder by endoscopy | not specified | 1-661 |  | 
																			
											| Measurement of lung function in an airtight cabin - whole body plethysmography | not specified | 1-710 |  | 
																			
											| Analysis of the amount of carbon monoxide taken in and given off by the lungs | not specified | 1-711 |  | 
																			
											| Measurement of the reaction of the respiratory tract to a stimulus | not specified | 1-714 |  | 
																			
											| Investigation of the of the brain, heart, and muscle activity, and respiration during sleep | not specified | 1-790 |  | 
																			
											| Examination of the bronchi by taking a sample of fluid or tissue with a needle | not specified | 1-843 |  | 
																			
											| Surgical opening of the top of the skull | not specified | 5-010.2 |  | 
																			
											| Surgical incision into the bones of the skull without further measures | not specified | 5-012.0 |  | 
																			
											| Reconstructive operations on the meninges | not specified | 5-021.0 |  | 
																			
											| Surgical incision into the cerebrospinal fluid spaces | not specified | 5-022.00 |  | 
																			
											| Other operations on the skull (cranium), brain or meninges | not specified | 5-029.10 |  | 
																			
											| Surgical treatment of nosebleeds | not specified | 5-210.0 |  | 
																			
											| Insertion of a cardiac pacemaker or of a defibrillator | not specified | 5-377.8 |  | 
																			
											| Surgical opening of the blood vessels or removal of a blood clot | not specified | 5-380.70 |  | 
																			
											| Surgical opening of the blood vessels or removal of a blood clot | not specified | 5-380.72 |  | 
																			
											| Surgical removal of a blood clot including the adjacent inner wall of an artery | not specified | 5-381.01 |  | 
																			
											| Surgical removal of a blood clot including the adjacent inner wall of an artery | not specified | 5-381.02 |  | 
																			
											| Surgical removal of a blood clot including the adjacent inner wall of an artery | not specified | 5-381.70 |  | 
																			
											| Surgical suture of blood vessels | not specified | 5-388.70 |  | 
																			
											| Surgical closure of a hole in the blood vessel wall with a skin or synthetic flap | not specified | 5-395.02 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the stomach | not specified | 5-433.52 |  | 
																			
											| Other operations on the stomach | not specified | 5-449.d3 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | not specified | 5-452.71 |  | 
																			
											| Surgical repair of an inguinal hernia | not specified | 5-530.34 |  | 
																			
											| Surgical opening of the abdominal cavity or tissue lying behind (retroperitoneum) | not specified | 5-541.1 |  | 
																			
											| Surgical removal or destruction of diseased scrotal tissue | not specified | 5-612.1 |  | 
																			
											| Surgical removal of a testicle | not specified | 5-622.1 |  | 
																			
											| Operation on the foreskin of the penis | not specified | 5-640.2 |  | 
																			
											| Surgical removal of a fallopian tube | not specified | 5-661.62 |  | 
																			
											| Removal of a foreign body from the womb (uterus) | not specified | 5-691 |  | 
																			
											| Surgical incision into the muscles, tendons or their connective tissue sheaths | not specified | 5-850.69 |  | 
																			
											| Division of muscles, tendons or their connective tissue sheaths | not specified | 5-851.89 |  | 
																			
											| Other surgical incision into the skin or subcutaneous tissues | not specified | 5-892.1c |  | 
																			
											| Skin grafting from the area around the wound | not specified | 5-903.4c |  | 
																			
											| Nature of the graft material | not specified | 5-930.3 |  | 
																			
											| Type of material used for tissue replacement and tissue reinforcement | not specified | 5-932.69 |  | 
																			
											| Operation using aids for optical magnification, e.g. magnifying spectacles, operating microscope | not specified | 5-984 |  | 
																			
											| 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 2 of the procedures list | not specified | 6-002.p1 |  | 
																			
											|  | not specified | 6-006.a0 |  | 
																			
											|  | not specified | 6-008.f |  | 
																			
											|  | not specified | 6-009.0 |  | 
																			
											| Removal of a foreign body by endoscopy | not specified | 8-100.8 |  | 
																			
											| Insertion or exchange of a tube inserted into the small intestine through the oesophagus | not specified | 8-125.1 |  | 
																			
											| Exchange or removal of a urinary catheter through the abdominal wall | not specified | 8-133.0 |  | 
																			
											| Exchange or removal of a urinary catheter through the abdominal wall | not specified | 8-133.1 |  | 
																			
											| Insertion of a small tube (cannula) or catheter into the space between the lungs and ribs for the drainage of fluid | not specified | 8-144.2 |  | 
																			
											| Treatment by washing out (irrigating) the ear | not specified | 8-171.0 |  | 
																			
											|  | not specified | 8-192.09 |  | 
																			
											|  | not specified | 8-192.0a |  | 
																			
											|  | not specified | 8-192.0e |  | 
																			
											|  | not specified | 8-192.14 |  | 
																			
											|  | not specified | 8-192.17 |  | 
																			
											|  | not specified | 8-192.19 |  | 
																			
											|  | not specified | 8-192.1a |  | 
																			
											|  | not specified | 8-192.1e |  | 
																			
											| Others therapeutic procedures to influence the immune system | not specified | 8-547.0 |  | 
																			
											| Function-orientated physical exercises and uses | not specified | 8-561.1 |  | 
																			
											| Treatment of cardiac arrhythmias with electric shocks - defibrillation | not specified | 8-640.0 |  | 
																			
											| Keeping the respiratory tract open by means of a tube through the mouth or nose | not specified | 8-700.0 |  | 
																			
											| Installation and adjustment of a mechanical ventilator for treatment of respiratory disorders during sleep | not specified | 8-717.0 |  | 
																			
											| 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.w9 |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | not specified | 8-810.wb |  | 
																			
											| 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 other plasma components or genetically engineered blood proteins | not specified | 8-812.53 |  | 
																			
											| Treatment by the exchange of the patient-s own blood for a substitute solution | not specified | 8-820.03 |  | 
																			
											| Filtration of particular cells from the blood | not specified | 8-823 |  | 
																			
											| Special treatment by exchanging the patient's own plasma for a substitute solution (double filtration plasma pheresis) | not specified | 8-826.03 |  | 
																			
											| 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 | 8-836.0k |  | 
																			
											| 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 | 8-836.70 |  | 
																			
											| Treatment of a vessel with access via a tube (catheter) | not specified | 8-836.81 |  | 
																			
											| Treatment of the heart and/or the coronary arteries with access through a tube (catheter) along the blood vessels | not specified | 8-837.00 |  | 
																			
											| Treatment of the heart and/or the coronary arteries with access through a tube (catheter) along the blood vessels | not specified | 8-837.m0 |  | 
																			
											| Additional information on materials used | not specified | 8-83b.00 |  | 
																			
											| Additional information on materials used | not specified | 8-83b.0c |  | 
																			
											| Additional information on materials used | not specified | 8-83b.c4 |  | 
																			
											| Implantation of non-drug eluting tubing (stents) in blood vessels | not specified | 8-840.0k |  | 
																			
											| Implantation of non-drug eluting tubing (stents) in blood vessels | not specified | 8-840.0p |  | 
																			
											| 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 | 8-841.0p |  | 
																			
											| Procedure for dialysing the blood outside the body with removal of the poison over a concentration gradient - dialysis | not specified | 8-854.3 |  | 
																			
											| Invasive monitoring of various functions of the nervous system | not specified | 8-924 |  | 
																			
											| Monitoring of various functions of the nervous system during an operation | not specified | 8-925.01 |  | 
																			
											| Interdisciplinary management other chronic illnesses | not specified | 8-97d.1 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | not specified | 8-980.10 |  | 
																			
											| Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) | not specified | 8-987.10 |  | 
																			
											|  | not specified | 8-98g.14 |  |