| Service | Number of cases | OPS key | Info | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 1.412 | 1-208.8 |  | 
																			
											| 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 | 633 | 8-930 |  | 
																			
											| Measurement of the brain waves - EEG | 246 | 1-207.0 |  | 
																			
											| Administration of medicines or salt solutions through the blood vessels in newborn babies | 216 | 8-010.3 |  | 
																			
											| Other operations on blood vessels | 206 | 5-399.5 |  | 
																			
											| Treatment by specific positioning of the patient in bed, e.g. positioning in a sling table or special bed | 193 | 8-390.0 |  | 
																			
											| Care of a new-born baby after birth | 185 | 9-262.0 |  | 
																			
											| Treatment by specific positioning of the patient in bed, e.g. positioning in a sling table or special bed | 172 | 8-390.1 |  | 
																			
											| Measurement of gastric acidity | 157 | 1-317.0 |  | 
																			
											| Assessment of a mental illness or of the relationship between mental and physical problems | 143 | 1-900.0 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | 125 | 1-208.1 |  | 
																			
											| Use of natural or artificial light for therapeutic purposes - light therapy | 121 | 8-560.2 |  | 
																			
											| Care of a new-born baby after birth | 107 | 9-262.1 |  | 
																			
											| Use of a face, nasal, or laryngeal mask for mechanical ventilation | 74 | 8-706 |  | 
																			
											|  | 62 | 8-984.30 |  | 
																			
											| Mechanical ventilation of newborn babies and infants | 56 | 8-711.00 |  | 
																			
											| Administration of medicines to sedate and eliminate pain | 55 | 8-903 |  | 
																			
											| Comprehensive ultrasound examination with contrast medium for investigating and excluding suspected diagnoses | 53 | 3-030 |  | 
																			
											| Anaesthesia with administration of an anaesthetic into a vein | 52 | 8-900 |  | 
																			
											|  | 41 | 9-984.6 |  | 
																			
											|  | 41 | 9-984.8 |  | 
																			
											|  | 38 | 9-984.7 |  | 
																			
											| Treatment procedure to maintain and encourage practical everyday and social skills - psychosocial intervention | 37 | 9-401.23 |  | 
																			
											| Measurement of the brain waves - EEG | 36 | 1-207.1 |  | 
																			
											| Examination of the cerebrospinal fluid spaces | 35 | 1-204.2 |  | 
																			
											| Treatment of neurological illness or mental illness in children, with determination of the psychosocial background (e.g. family situation) or taking into account the relationship between mental and physical problems | 35 | 9-403.2 |  | 
																			
											| Patient education | 35 | 9-500.0 |  | 
																			
											| Treatment procedure to maintain and encourage practical everyday and social skills - psychosocial intervention | 28 | 9-401.26 |  | 
																			
											| Insertion of a tube into the trachea for ventilation - intubation | 23 | 8-701 |  | 
																			
											| Mechanical ventilation of newborn babies and infants | 22 | 8-711.20 |  | 
																			
											| Oxygen administration to newborn babies | 22 | 8-720 |  | 
																			
											| Administration of medicines in accordance with List 3 of the procedures list | 17 | 6-003.9 |  | 
																			
											| Treatment procedure to maintain and encourage practical everyday and social skills - psychosocial intervention | 16 | 9-401.32 |  | 
																			
											|  | 15 | 8-831.02 |  | 
																			
											| Treatment of neurological illness or mental illness in children, with determination of the psychosocial background (e.g. family situation) or taking into account the relationship between mental and physical problems | 15 | 9-403.x |  | 
																			
											|  | 14 | 9-984.9 |  | 
																			
											| Mechanical ventilation of newborn babies and infants | 13 | 8-711.10 |  | 
																			
											| Treatment procedure to maintain and encourage practical everyday and social skills - psychosocial intervention | 13 | 9-401.30 |  | 
																			
											| Treatment procedure to maintain and encourage practical everyday and social skills - psychosocial intervention | 12 | 9-401.31 |  | 
																			
											| Compensation of fluid deficit in a newborn baby by injection of fluid into a vein | 11 | 8-811.0 |  | 
																			
											| Treatment procedure to maintain and encourage practical everyday and social skills - psychosocial intervention | 11 | 9-401.22 |  | 
																			
											| Treatment of neurological illness or mental illness in children, with determination of the psychosocial background (e.g. family situation) or taking into account the relationship between mental and physical problems | 11 | 9-403.0 |  | 
																			
											| Simple surgical closure of the skin or the subcutaneous tissues after injuries, e.g. with a suture | 9 | 5-900.04 |  | 
																			
											| Dressings for large areas of skin or serious skin diseases | 8 | 8-191.00 |  | 
																			
											| Monitoring and care of childbirth with increased risk for the mother or child | 7 | 9-261 |  | 
																			
											| Examination of the oesophagus, stomach and duodenum by endoscopy | 6 | 1-632.0 |  | 
																			
											| Transfusion of blood, red blood cells or platelets from a donor to a recipient | 6 | 8-800.c0 |  | 
																			
											|  | 6 | 8-831.00 |  | 
																			
											| Other operations on blood vessels | 5 | 5-399.6 |  | 
																			
											| Injection or administration of medicines into the urinary bladder | 5 | 8-132.x |  | 
																			
											| Dressings for large areas of skin or serious skin diseases | 5 | 8-191.10 |  | 
																			
											| Cardiac or cardiopulmonary resuscitation | 5 | 8-771 |  | 
																			
											| Monitoring and care of normal childbirth | 5 | 9-260 |  | 
																			
											|  | 5 | 9-984.a |  | 
																			
											| Magnetic resonance imaging (MRI) of the head without contrast medium | 4 | 3-800 |  | 
																			
											| Other operations on blood vessels | 4 | 5-399.7 |  | 
																			
											| Treatment by specific positioning of the patient in bed, e.g. positioning in a sling table or special bed | 4 | 8-390.3 |  | 
																			
											| Treatment procedure to maintain and encourage practical everyday and social skills - psychosocial intervention | 4 | 9-401.25 |  | 
																			
											| Treatment of neurological illness or mental illness in children, with determination of the psychosocial background (e.g. family situation) or taking into account the relationship between mental and physical problems | 4 | 9-403.1 |  | 
																			
											| Examination of the cerebrospinal fluid spaces | not specified | 1-204.1 |  | 
																			
											| Examination of the cerebrospinal fluid spaces | not specified | 1-204.5 |  | 
																			
											| Measurement of brain waves triggered by targeted stimuli (evoked potentials) | not specified | 1-208.0 |  | 
																			
											| Measurement of gastric acidity | not specified | 1-317.1 |  | 
																			
											| 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 |  | 
																			
											| Examination of the urethra and the urinary bladder by endoscopy | not specified | 1-661 |  | 
																			
											| Examination of the ureter by endoscopy | not specified | 1-665 |  | 
																			
											| Examination of a joint or of a bursa by taking a sample of fluid or tissue with a needle | not specified | 1-854.6 |  | 
																			
											| Assessment of a mental illness or of the relationship between mental and physical problems | not specified | 1-900.1 |  | 
																			
											| Uniform basic assessment in symptoms of unclear origin in neonates and infants | not specified | 1-944.21 |  | 
																			
											| Additional information for investigations | not specified | 1-999.20 |  | 
																			
											| Additional information for investigations | not specified | 1-999.2x |  | 
																			
											|  | not specified | 1-999.40 |  | 
																			
											| X-rays of the kidney and urinary tract with contrast medium | not specified | 3-13d.0 |  | 
																			
											| Magnetic resonance imaging (MRI) of the pelvis without contrast medium | not specified | 3-805 |  | 
																			
											| Magnetic resonance imaging (MRI) of the musculoskeletal system without contrast medium | not specified | 3-806 |  | 
																			
											| Magnetic resonance imaging (MRI) of the head with contrast medium | not specified | 3-820 |  | 
																			
											| Computer-assisted analysis of the images with 3D-analysis | not specified | 3-990 |  | 
																			
											| Operation to divide adhesions around a nerve or to relieve pressure on the nerve or to abolish the nerve function | not specified | 5-056.40 |  | 
																			
											| Surgical removal of the lens of the eye without the lens capsule | not specified | 5-144.3a |  | 
																			
											| Other operations on the tongue | not specified | 5-259.1 |  | 
																			
											| Surgical removal of the palatine tonsils (without removal of the adenoids) - tonsillectomy without adenoidectomy | not specified | 5-281.0 |  | 
																			
											| Surgical removal of the palatine tonsils (without removal of the adenoids) - tonsillectomy without adenoidectomy | not specified | 5-281.5 |  | 
																			
											| Surgical removal of the (enlarged) adenoids (without removal of the tonsils) | not specified | 5-285.0 |  | 
																			
											| Insertion of a permanent, artificial tracheal opening | not specified | 5-312.0 |  | 
																			
											| Operation for congenital tumours or malformations of the vascular system | not specified | 5-357.0 |  | 
																			
											| Other operations on the intestine | not specified | 5-469.d3 |  | 
																			
											| Other operations on the anus | not specified | 5-499.0 |  | 
																			
											| Surgical fixation of the testicle in the scrotum | not specified | 5-624.4 |  | 
																			
											| Surgical fixation of the testicle in the scrotum | not specified | 5-624.x |  | 
																			
											| Other operations on the testicle | not specified | 5-629.x |  | 
																			
											| Surgical removal of the tissue around the epididymis | not specified | 5-631.2 |  | 
																			
											| Reconstructive operations on the spermatic cord | not specified | 5-634.2 |  | 
																			
											| Vaginal delivery by means of a vacuum extractor | not specified | 5-728.0 |  | 
																			
											| Artificial rupture of membranes | not specified | 5-730 |  | 
																			
											| Extension of the vaginal opening with an incision into the perineum (episiotomy) during childbirth, with subsequent suturing | not specified | 5-738.0 |  | 
																			
											| Removal of the retained placenta after childbirth | not specified | 5-756.0 |  | 
																			
											| Reconstructive operations on the female reproductive organs after a perineal tear during delivery | not specified | 5-758.3 |  | 
																			
											| Reconstructive operations on the female reproductive organs after a perineal tear during delivery | not specified | 5-758.4 |  | 
																			
											| Surgical reduction of a simple fracture in the joint region of a long bone | not specified | 5-793.17 |  | 
																			
											| Surgical incision into the breast | not specified | 5-881.0 |  | 
																			
											| Other surgical incision into the skin or subcutaneous tissues | not specified | 5-892.0c |  | 
																			
											| Other surgical incision into the skin or subcutaneous tissues | not specified | 5-892.0e |  | 
																			
											| Other surgical incision into the skin or subcutaneous tissues | not specified | 5-892.1d |  | 
																			
											| Simple surgical closure of the skin or the subcutaneous tissues after injuries, e.g. with a suture | not specified | 5-900.00 |  | 
																			
											| Simple surgical closure of the skin or the subcutaneous tissues after injuries, e.g. with a suture | not specified | 5-900.09 |  | 
																			
											| Simple surgical closure of the skin or the subcutaneous tissues after injuries, e.g. with a suture | not specified | 5-900.0c |  | 
																			
											| Simple surgical closure of the skin or the subcutaneous tissues after injuries, e.g. with a suture | not specified | 5-900.0f |  | 
																			
											| Simple surgical closure of the skin or the subcutaneous tissues after injuries, e.g. with a suture | not specified | 5-900.1b |  | 
																			
											| Administration of medicines according to List 4 of the Catalogue of Procedures | not specified | 6-004.00 |  | 
																			
											| Administration of medicines according to List 4 of the Catalogue of Procedures | not specified | 6-004.01 |  | 
																			
											| Administration of medicines according to List 4 of the Catalogue of Procedures | not specified | 6-004.02 |  | 
																			
											| Administration of medicines according to List 4 of the Catalogue of Procedures | not specified | 6-004.04 |  | 
																			
											| Administration of medicines according to List 4 of the Catalogue of Procedures | not specified | 6-004.06 |  | 
																			
											| Administration of medicines or salt solutions through the blood vessels in newborn babies | not specified | 8-010.1 |  | 
																			
											| Artificial feeding through a vein as the main medical treatment | not specified | 8-016 |  | 
																			
											| Treatment by injecting a medicine into an organ or tissue, or removal of excess fluid (effusion) e.g. from the joints | not specified | 8-020.5 |  | 
																			
											| Removal of a foreign body by endoscopy | not specified | 8-100.8 |  | 
																			
											| Removal of a foreign body from the skin without a surgical incision | not specified | 8-102.7 |  | 
																			
											| Intestinal lavage | not specified | 8-121 |  | 
																			
											| Removal of a segment of intestine that has folded into another segment (intussusception) | not specified | 8-122.0 |  | 
																			
											| 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 |  | 
																			
											| Specific dressing techniques | not specified | 8-190.20 |  | 
																			
											| Dressings for large areas of skin or serious skin diseases | not specified | 8-191.20 |  | 
																			
											| Treatment by specific positioning of the patient in bed, e.g. positioning in a sling table or special bed | not specified | 8-390.5 |  | 
																			
											| Treatment by specific positioning of the patient in bed, e.g. positioning in a sling table or special bed | not specified | 8-390.x |  | 
																			
											| Keeping the respiratory tract open by means of a tube through the mouth or nose | not specified | 8-700.0 |  | 
																			
											| Keeping the respiratory tract open by means of a tube through the mouth or nose | not specified | 8-700.1 |  | 
																			
											| Keeping the respiratory tract open by means of a tube through the mouth or nose | not specified | 8-700.x |  | 
																			
											| Mechanical ventilation of newborn babies and infants | not specified | 8-711.01 |  | 
																			
											| Mechanical ventilation of newborn babies and infants | not specified | 8-711.11 |  | 
																			
											| Mechanical ventilation of newborn babies and infants | not specified | 8-711.40 |  | 
																			
											| Mechanical ventilation of newborn babies and infants | not specified | 8-711.41 |  | 
																			
											| Special procedures for mechanical ventilation with severe respiratory failure | not specified | 8-714.00 |  | 
																			
											| Special procedures for mechanical ventilation with severe respiratory failure | not specified | 8-714.02 |  | 
																			
											| Transfusion of blood, red blood cells or platelets from a donor to a recipient | not specified | 8-800.0 |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | not specified | 8-810.h3 |  | 
																			
											| Insertion or exchange of a tube (catheter) in a large vein | not specified | 8-831.2 |  | 
																			
											| Regional pain control by injecting an anaesthetic into a space in the spinal canal (epidural space) | not specified | 8-910 |  | 
																			
											| Monitoring of the brain waves for more than 24 hours | not specified | 8-920 |  | 
																			
											|  | not specified | 8-984.31 |  | 
																			
											| Interdisciplinary management for colonisation or infection with multiresistant germs (pathogens) | not specified | 8-987.10 |  | 
																			
											| Treatment in the intensive care unit in childhood (basic procedure) | not specified | 8-98d.0 |  | 
																			
											| Treatment procedure to maintain and encourage practical everyday and social skills - psychosocial intervention | not specified | 9-401.50 |  | 
																			
											| Treatment procedure to maintain and encourage practical everyday and social skills - psychosocial intervention | not specified | 9-401.51 |  | 
																			
											| Treatment procedure to maintain and encourage practical everyday and social skills - psychosocial intervention | not specified | 9-401.52 |  | 
																			
											| Treatment procedure to maintain and encourage practical everyday and social skills - psychosocial intervention | not specified | 9-401.53 |  | 
																			
											| Patient education | not specified | 9-500.1 |  | 
																			
											|  | not specified | 9-502.1 |  |