| Service | Number of cases | OPS key | Info | 
																			
											| Examination of the larynx by endoscopy | 251 | 1-610.2 |  | 
																			
											| Surgical removal of the (enlarged) adenoids (without removal of the tonsils) | 92 | 5-285.0 |  | 
																			
											| Surgical removal of the palatine tonsils (without removal of the adenoids) - tonsillectomy without adenoidectomy | 77 | 5-281.5 |  | 
																			
											| Surgical removal of the tonsils and adenoids | 53 | 5-282.0 |  | 
																			
											| Surgical incision into the eardrum (tympanic membrane) | 36 | 5-200.5 |  | 
																			
											| Surgical removal of the palatine tonsils (without removal of the adenoids) - tonsillectomy without adenoidectomy | 34 | 5-281.0 |  | 
																			
											| Treatment of a nose bleed by packing with absorbent material (tamponade) | 29 | 8-500 |  | 
																			
											| Exchange or removal of the absorbent pack used to stop bleeding (tamponade) | 24 | 8-506 |  | 
																			
											| Surgical incision into the eardrum (tympanic membrane) | 18 | 5-200.4 |  | 
																			
											| Surgical removal or reconstruction of the nasal septum | 16 | 5-214.6 |  | 
																			
											| Operation on the inferior nasal concha | 15 | 5-215.3 |  | 
																			
											| Measurement of hearing - audiometry | 11 | 1-242 |  | 
																			
											| Operation on several paranasal sinuses | 11 | 5-224.63 |  | 
																			
											| Magnetic resonance imaging (MRI) of the head with contrast medium | 9 | 3-820 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the larynx | 9 | 5-300.1 |  | 
																			
											| Examination of the oesophagus by endoscopy | 8 | 1-630.1 |  | 
																			
											| Computed tomography (CT) of the head without contrast medium | 8 | 3-200 |  | 
																			
											| Any other endoscopy through a stab incision, surgical opening or during an operation | 7 | 1-699.0 |  | 
																			
											| Surgical treatment of nosebleeds | 7 | 5-210.0 |  | 
																			
											| Treatment on the intensive care unit (basic procedures) | 7 | 8-980.0 |  | 
																			
											| Magnetic resonance imaging (MRI) of the neck without contrast medium | 6 | 3-801 |  | 
																			
											| Taking a tissue sample (biopsy) of the upper digestive tract, biliary tract or the pancreas by endoscopy | 5 | 1-440.a |  | 
																			
											| Examination of the trachea and the bronchi by endoscopy | 5 | 1-620.01 |  | 
																			
											| Other computed tomography (CT) without contrast medium | 5 | 3-20x |  | 
																			
											| Magnetic resonance imaging (MRI) of the neck with contrast medium | 5 | 3-821 |  | 
																			
											| 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 | 5 | 8-930 |  | 
																			
											|  | 5 | 9-984.7 |  | 
																			
											| Examination of the trachea and the bronchi by endoscopy | 4 | 1-620.1x |  | 
																			
											| Surgical removal or reconstruction of the nasal septum | 4 | 5-214.5 |  | 
																			
											| Operation on the ethmoid bone or on the sphenoid sinus | 4 | 5-222.20 |  | 
																			
											|  | 4 | 8-98g.10 |  | 
																			
											|  | 4 | 9-984.8 |  | 
																			
											| Taking a tissue sample (biopsy) of the throat (pharynx) without surgical incision | not specified | 1-422.1 |  | 
																			
											| Taking a tissue sample (biopsy) of any other digestive tract organ, the peritoneum, or the tissue lying behind the peritoneum (retroperitoneum) through a surgical incision | not specified | 1-559.0 |  | 
																			
											| Examination of the larynx by endoscopy | not specified | 1-610.0 |  | 
																			
											| Examination of the trachea and the bronchi by endoscopy | not specified | 1-620.10 |  | 
																			
											| Examination of the trachea and the bronchi by endoscopy | not specified | 1-620.x |  | 
																			
											| Examination of the oesophagus by endoscopy | not specified | 1-630.0 |  | 
																			
											| Examination of the oesophagus by endoscopy | not specified | 1-630.x |  | 
																			
											| Examination of the trachea or bronchi by endoscopy, through a surgical incision, or during an operation | not specified | 1-690.0 |  | 
																			
											| Examination of the trachea or bronchi by endoscopy, through a surgical incision, or during an operation | not specified | 1-690.1 |  | 
																			
											| Other examination by taking a sample of fluid or tissue with a needle | not specified | 1-859.x |  | 
																			
											| Computed tomography of the head with contrast medium | not specified | 3-220 |  | 
																			
											| Computed tomography of the chest with contrast medium | not specified | 3-222 |  | 
																			
											| Other computed tomography (CT) with contrast medium | not specified | 3-22x |  | 
																			
											| 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 head without contrast medium | not specified | 3-800 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the outer ear | not specified | 5-181.1 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the outer ear | not specified | 5-181.4 |  | 
																			
											| Partial or complete surgical removal of the pinna | not specified | 5-182.1 |  | 
																			
											| Wound care of the outer ear | not specified | 5-183.0 |  | 
																			
											| Surgical closure of the eardrum (tympanic membrane) (type I) | not specified | 5-194.0 |  | 
																			
											| Removal of a grommet from the Eustachian tube | not specified | 5-201 |  | 
																			
											| Surgical incision into the mastoid process or the middle ear | not specified | 5-202.2 |  | 
																			
											| Operation on the inferior nasal concha | not specified | 5-215.1 |  | 
																			
											| Operation on the maxillary sinuses | not specified | 5-221.1 |  | 
																			
											| Operation on the ethmoid bone or on the sphenoid sinus | not specified | 5-222.21 |  | 
																			
											| Operation on several paranasal sinuses | not specified | 5-224.3 |  | 
																			
											| Removal of dental roots or root canal treatment | not specified | 5-237.22 |  | 
																			
											| Surgical removal of a salivary gland | not specified | 5-262.40 |  | 
																			
											| Surgical incision into the hard or soft palate | not specified | 5-271.0 |  | 
																			
											| Surgical removal of the (enlarged) adenoids (without removal of the tonsils) | not specified | 5-285.1 |  | 
																			
											| Surgical removal of the (enlarged) adenoids (without removal of the tonsils) | not specified | 5-285.x |  | 
																			
											| Surgical removal or destruction of diseased tissue in the larynx | not specified | 5-300.2 |  | 
																			
											| Surgical incision into the larynx or other incisions into the trachea | not specified | 5-313.2 |  | 
																			
											| Surgical removal of individual lymph nodes or lymphatic vessels | not specified | 5-401.g0 |  | 
																			
											| Skin grafting from the area around the wound | not specified | 5-903.x4 |  | 
																			
											| Temporary covering of soft tissue injuries with skin or artificial skin | not specified | 5-916.24 |  | 
																			
											| Removal of a foreign body by endoscopy | not specified | 8-100.7 |  | 
																			
											| Other treatment by the targeted insertion of a needle with subsequent administration or removal of substances, e.g. fluid | not specified | 8-159.x |  | 
																			
											| Function-orientated physical exercises and uses | not specified | 8-561.1 |  | 
																			
											| Insertion of a tube into the trachea for ventilation - intubation | not specified | 8-701 |  | 
																			
											| Transfusion of blood, red blood cells or platelets from a donor to a recipient | not specified | 8-800.c0 |  | 
																			
											| Transfusion of blood plasma or plasma components or genetically engineered blood proteins | not specified | 8-810.ja |  | 
																			
											| Transfusion of other plasma components or genetically engineered blood proteins | not specified | 8-812.51 |  | 
																			
											|  | not specified | 8-831.00 |  | 
																			
											| Intensive care monitoring of respiration, the heart and the circulation with measurement of the pressure in the superior vena cava (central venous pressure) | not specified | 8-931.0 |  | 
																			
											|  | not specified | 8-98b.32 |  | 
																			
											|  | not specified | 9-984.6 |  | 
																			
											|  | not specified | 9-984.9 |  |