| Service | Number of cases | OPS key | Info | 
																			
											| Measurement of the brain waves - EEG | 2.508 | 1-207.0 |  | 
																			
											| Examination of the cerebrospinal fluid spaces | 859 | 1-204.2 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 817 | 1-208.2 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 817 | 1-208.3 |  | 
																			
											| Measurement of the electrical activity of the muscles - EMG | 601 | 1-205 |  | 
																			
											| Examination of nerve conduction - ENG | 601 | 1-206 |  | 
																			
											|  | 528 | 9-984.7 |  | 
																			
											|  | 522 | 8-981.32 |  | 
																			
											|  | 403 | 9-984.8 |  | 
																			
											|  | 298 | 8-981.33 |  | 
																			
											|  | 278 | 8-981.30 |  | 
																			
											| Treatment of physically or functionally induced disorders of speech, language, the voice or swallowing | 274 | 9-320 |  | 
																			
											| Assessment of perception and behaviour by means of standardised tests | 237 | 1-902.0 |  | 
																			
											|  | 231 | 9-984.9 |  | 
																			
											|  | 207 | 8-981.31 |  | 
																			
											| Treatment by injecting a medicine into an organ or tissue, or removal of excess fluid (effusion) e.g. from the joints | 178 | 8-020.8 |  | 
																			
											| Interdisciplinary measures for early postoperative treatment and early rehabilitation of ill elderly people | 176 | 8-550.1 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 175 | 1-208.6 |  | 
																			
											|  | 163 | 9-984.6 |  | 
																			
											|  | 140 | 9-984.b |  | 
																			
											| Interdisciplinary measures for early postoperative treatment and early rehabilitation of ill elderly people | 125 | 8-550.2 |  | 
																			
											| Additional information on materials used | 97 | 8-83b.bx |  | 
																			
											| 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 | 80 | 8-151.4 |  | 
																			
											| Examination of the cerebrospinal fluid spaces | 65 | 1-204.1 |  | 
																			
											|  | 65 | 9-984.a |  | 
																			
											| Additional information on materials used | 41 | 8-83b.0c |  | 
																			
											|  | 37 | 8-98g.11 |  | 
																			
											| Transfusion of blood, red blood cells or platelets from a donor to a recipient | 34 | 8-800.c0 |  | 
																			
											| Evaluation of swallowing with the help of a tube-shaped instrument with a camera mounted at the end (endoscope) | 30 | 1-613 |  | 
																			
											| Interdisciplinary measures for early postoperative treatment and early rehabilitation of ill elderly people | 27 | 8-550.0 |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | 23 | 8-810.wd |  | 
																			
											|  | 22 | 8-98g.12 |  | 
																			
											| Monitoring of the brain waves for more than 24 hours | 18 | 8-920 |  | 
																			
											|  | 18 | 8-98g.10 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 17 | 1-208.4 |  | 
																			
											|  | 17 | 8-017.0 |  | 
																			
											| Operation with the smallest possible incision into the skin and minimal tissue damage (minimally invasive) | 13 | 5-986.x |  | 
																			
											| Others therapeutic procedures to influence the immune system | 11 | 8-547.0 |  | 
																			
											| Examination of the cerebrospinal fluid spaces | 10 | 1-204.5 |  | 
																			
											| Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) | 10 | 8-987.11 |  | 
																			
											| Filtration of antibodies from the blood | 9 | 8-821.11 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 8 | 1-208.1 |  | 
																			
											| Taking a tissue sample (biopsy) of muscle or soft tissue through a surgical incision | 8 | 1-502.5 |  | 
																			
											| Taking a tissue sample (biopsy) of muscle or soft tissue through a surgical incision | 8 | 1-502.6 |  | 
																			
											| Additional information on materials used | 8 | 8-83b.p |  | 
																			
											| Taking a tissue sample (biopsy) of muscle or soft tissue through a surgical incision | 7 | 1-502.2 |  | 
																			
											| Administration of medicines in accordance with List 1 of the procedures list | 7 | 6-001.e8 |  | 
																			
											|  | 7 | 8-017.1 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 6 | 1-208.x |  | 
																			
											| Taking a tissue sample (biopsy) of muscle or soft tissue through a surgical incision | 6 | 1-502.1 |  | 
																			
											| Premature termination of an operation (operation not carried out completely) | 6 | 5-995 |  | 
																			
											|  | 6 | 6-00c.0 |  | 
																			
											| Additional information on materials used | 6 | 8-83b.ba |  | 
																			
											| Others therapeutic procedures to influence the immune system | 5 | 8-547.x |  | 
																			
											| Filtration of antibodies from the blood | 5 | 8-821.0 |  | 
																			
											|  | 5 | 8-98g.13 |  | 
																			
											| Measurement of the brain waves - EEG | 4 | 1-207.1 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 4 | 1-208.7 |  | 
																			
											| Taking a tissue sample (biopsy) of nerves outside the brain and spinal cord through a surgical incision | 4 | 1-513.8 |  | 
																			
											| Examination of the abdominal cavity by taking a sample of fluid or tissue with a needle | 4 | 1-853.2 |  | 
																			
											| Treatment by injecting a medicine into an organ or tissue, or removal of excess fluid (effusion) e.g. from the joints | 4 | 8-020.5 |  | 
																			
											| Insertion or exchange of a tube inserted into the small intestine through the oesophagus | 4 | 8-125.1 |  | 
																			
											| Cancer treatment for one or more days with chemotherapy drugs administered into a vein or beneath the skin | 4 | 8-542.11 |  | 
																			
											| Pain control by injecting an anaesthetic around the autonomic (sympathetic) nervous system | 4 | 8-916.01 |  | 
																			
											| Examination to establish brain death | not specified | 1-202.01 |  | 
																			
											| Examination to establish brain death | not specified | 1-202.1 |  | 
																			
											| Examination of the cerebrospinal fluid spaces | not specified | 1-204.x |  | 
																			
											| Taking a tissue sample (biopsy) of lymph nodes, spleen or thymus gland with a needle through the skin | not specified | 1-425.1 |  | 
																			
											| Taking a tissue sample (biopsy) of lymph nodes, spleen or thymus gland with a needle through the skin | not specified | 1-425.8 |  | 
																			
											| Taking a tissue sample (biopsy) of bone with a needle | not specified | 1-480.5 |  | 
																			
											| Taking a tissue sample (biopsy) of skin or subcutaneous tissues without surgical incision | not specified | 1-490.6 |  | 
																			
											| Taking a tissue sample (biopsy) of muscle or soft tissue through a surgical incision | not specified | 1-502.7 |  | 
																			
											| Taking a tissue sample (biopsy) of muscle or soft tissue through a surgical incision | not specified | 1-502.x |  | 
																			
											| Taking a tissue sample (biopsy) of nerves outside the brain and spinal cord through a surgical incision | not specified | 1-513.9 |  | 
																			
											| Taking a tissue sample (biopsy) of blood vessels through a surgical incision | not specified | 1-587.0 |  | 
																			
											|  | not specified | 1-999.40 |  | 
																			
											| X-rays of the breast | not specified | 3-100.0 |  | 
																			
											| X-rays of the oesophagus with contrast medium | not specified | 3-137 |  | 
																			
											| Tooth extraction | not specified | 5-230.0 |  | 
																			
											| Insertion of a permanent, artificial tracheal opening | not specified | 5-312.1 |  | 
																			
											| Reconstructive operations on the trachea | not specified | 5-316.3 |  | 
																			
											| Other surgical removal of blood vessels because of vascular disease or for grafting | not specified | 5-386.0x |  | 
																			
											| Operation using a surgical robot | not specified | 5-987.1 |  | 
																			
											| Operation using a navigation system which produces real-time 3-D images of the surgical site during the operation | not specified | 5-988.2 |  | 
																			
											|  | not specified | 5-98k.2 |  | 
																			
											| Administration of medicines in accordance with List 1 of the procedures list | not specified | 6-001.h3 |  | 
																			
											| Administration of medicines in accordance with List 1 of the procedures list | not specified | 6-001.h5 |  | 
																			
											| Administration of medicines in accordance with List 2 of the procedures list | not specified | 6-002.j3 |  | 
																			
											| 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.ka |  | 
																			
											| Administration of medicines in accordance with List 3 of the procedures list | not specified | 6-003.kb |  | 
																			
											| Administration of medicines in accordance with List 3 of the procedures list | not specified | 6-003.kc |  | 
																			
											|  | not specified | 6-008.f |  | 
																			
											|  | not specified | 6-00f.n |  | 
																			
											|  | not specified | 8-017.2 |  | 
																			
											| 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.x |  | 
																			
											| Intestinal lavage | not specified | 8-121 |  | 
																			
											| Insertion of a small tube (cannula) or catheter into an organ in the abdominal cavity for the drainage of fluid | not specified | 8-146.1 |  | 
																			
											| 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 an organ in the abdominal cavity with subsequent administration or removal of substances, e.g. fluid | not specified | 8-154.1 |  | 
																			
											| Treatment by the targeted insertion of a needle into an organ in the abdominal cavity with subsequent administration or removal of substances, e.g. fluid | not specified | 8-154.2 |  | 
																			
											| Other treatment by irrigation or lavage | not specified | 8-179.x |  | 
																			
											| Treatment by specific positioning of the patient in bed, e.g. positioning in a sling table or special bed | not specified | 8-390.1 |  | 
																			
											| Treatment of a nose bleed by packing with absorbent material (tamponade) | not specified | 8-500 |  | 
																			
											|  | not specified | 8-523.04 |  | 
																			
											| Cancer treatment for several days (e.g. 2-4 days) with two or more chemotherapy drugs administered into a vein | not specified | 8-543.32 |  | 
																			
											| Others therapeutic procedures to influence the immune system | not specified | 8-547.2 |  | 
																			
											| Transfusion of blood, red blood cells or platelets from a donor to a recipient | not specified | 8-800.0 |  | 
																			
											| 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.c3 |  | 
																			
											| Transfusion of blood, red blood cells or platelets from a donor to a recipient | not specified | 8-800.g1 |  | 
																			
											| Transfusion of blood, red blood cells or platelets from a donor to a recipient | not specified | 8-800.g5 |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | not specified | 8-810.jf |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | not specified | 8-810.w1 |  | 
																			
											| 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.wb |  | 
																			
											| 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.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.wh |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | not specified | 8-810.wk |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | not specified | 8-810.wm |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | not specified | 8-810.wn |  | 
																			
											| Transfusion of other plasma components or genetically engineered blood proteins | not specified | 8-812.50 |  | 
																			
											| Transfusion of other plasma components or genetically engineered blood proteins | not specified | 8-812.51 |  | 
																			
											| Transfusion of other plasma components or genetically engineered blood proteins | not specified | 8-812.52 |  | 
																			
											| Transfusion of other plasma components or genetically engineered blood proteins | not specified | 8-812.58 |  | 
																			
											| Transfusion of other plasma components or genetically engineered blood proteins | not specified | 8-812.60 |  | 
																			
											| Transfusion of other plasma components or genetically engineered blood proteins | not specified | 8-812.62 |  | 
																			
											| Treatment by the exchange of the patient-s own blood for a substitute solution | not specified | 8-820.00 |  | 
																			
											| Treatment by the exchange of the patient-s own blood for a substitute solution | not specified | 8-820.03 |  | 
																			
											| Treatment by the exchange of the patient-s own blood for a substitute solution | not specified | 8-820.04 |  | 
																			
											| Filtration of antibodies from the blood | not specified | 8-821.10 |  | 
																			
											|  | not specified | 8-83b.e3 |  | 
																			
											| Additional information on materials used | not specified | 8-83b.ex |  | 
																			
											| Additional information on materials used | not specified | 8-83b.x |  | 
																			
											|  | not specified | 8-981.23 |  | 
																			
											| Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) | not specified | 8-987.13 |  | 
																			
											|  | not specified | 8-98g.14 |  |