| Service | Number of cases | OPS key | Info | 
																			
											| Examination of the anus and rectum by endoscopy | 652 | 1-653 |  | 
																			
											| Examination of the rectum by endoscopy | 648 | 1-654.1 |  | 
																			
											| Ultrasound of the rectum, with access through the anus | 607 | 3-058 |  | 
																			
											|  | 471 | 8-192.0d |  | 
																			
											| Surgical incision into or removal of tissue from the anus | 416 | 5-490.1 |  | 
																			
											| Surgical treatment of abnormal passages in the region of the anus (anal fistula) | 315 | 5-491.12 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the anal region | 307 | 5-492.01 |  | 
																			
											|  | 101 | 5-493.20 |  | 
																			
											|  | 85 | 5-493.22 |  | 
																			
											| Other operations on the thyroid gland or parathyroid glands | 84 | 5-069.40 |  | 
																			
											|  | 76 | 5-98c.2 |  | 
																			
											| Surgical treatment of piles (haemorrhoids) | 74 | 5-493.5 |  | 
																			
											|  | 65 | 5-493.21 |  | 
																			
											| Intestinal lavage | 58 | 8-121 |  | 
																			
											| Surgical removal of half of the thyroid gland | 57 | 5-061.0 |  | 
																			
											| Corrective surgery for the anus or anal sphincter muscle | 47 | 5-496.3 |  | 
																			
											| Reconstructive operations on the rectum | 40 | 5-486.2 |  | 
																			
											| Surgical treatment of abnormal passages in the region of the anus (anal fistula) | 40 | 5-491.2 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the rectum with access through the anus | 34 | 5-482.10 |  | 
																			
											| Surgical treatment of piles (haemorrhoids) | 26 | 5-493.71 |  | 
																			
											| Surgical removal of the thyroid gland | 20 | 5-063.0 |  | 
																			
											|  | 20 | 5-493.01 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the anal region | 19 | 5-492.00 |  | 
																			
											| Surgical eradication of a pilonidal sinus | 17 | 5-897.12 |  | 
																			
											| Surgical removal of diseased tissue from the skin or subcutaneous tissues | 17 | 5-915.0d |  | 
																			
											| Surgical treatment of abnormal passages in the region of the anus (anal fistula) | 15 | 5-491.5 |  | 
																			
											| Reconstructive operations on the rectum | 14 | 5-486.7 |  | 
																			
											|  | 14 | 5-493.02 |  | 
																			
											| Extensive surgical removal of diseased tissue from the skin or subcutaneous tissues | 12 | 5-895.1d |  | 
																			
											| Surgical removal or destruction of diseased tissue in the anal region | 11 | 5-492.1 |  | 
																			
											| Other operations on the anus | 11 | 5-499.0 |  | 
																			
											| Surgical removal of diseased tissue from the skin or subcutaneous tissues | 11 | 5-894.0d |  | 
																			
											| Other operations on the nerves or nerve ganglions | 10 | 5-059.82 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the rectum with access through the anus | 9 | 5-482.80 |  | 
																			
											| Surgical eradication of a pilonidal sinus | 9 | 5-897.0 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the rectum with access through the anus | 8 | 5-482.30 |  | 
																			
											| Extensive surgical removal of diseased tissue from the skin or subcutaneous tissues | 8 | 5-895.0c |  | 
																			
											| Other operations on the intestine | 7 | 5-469.d3 |  | 
																			
											| Surgical treatment of abnormal passages in the region of the anus (anal fistula) | 7 | 5-491.13 |  | 
																			
											| Extensive surgical removal of diseased tissue from the skin or subcutaneous tissues | 7 | 5-895.1c |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | 6 | 5-452.63 |  | 
																			
											| Surgical removal of the rectum (resection of the rectum) maintaining the anal sphincter | 6 | 5-484.27 |  | 
																			
											|  | 6 | 5-493.62 |  | 
																			
											| Extensive surgical removal of diseased tissue from the skin or subcutaneous tissues | 6 | 5-895.0d |  | 
																			
											| Examination of the large intestine by endoscopy - colonoscopy | 5 | 1-650.1 |  | 
																			
											| Surgical removal of one or more parathyroid glands | 5 | 5-067.0 |  | 
																			
											| Surgical treatment of abnormal passages in the region of the anus (anal fistula) | 5 | 5-491.14 |  | 
																			
											| Surgical removal of diseased tissue from the skin or subcutaneous tissues | 5 | 5-894.0c |  | 
																			
											| 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 |  | 
																			
											| Examination of the large intestine by endoscopy - colonoscopy | 4 | 1-650.0 |  | 
																			
											| Surgical treatment of abnormal passages in the region of the anus (anal fistula) | 4 | 5-491.11 |  | 
																			
											|  | 4 | 5-493.00 |  | 
																			
											| Injection of water into the intestine to facilitate bowel emptying, e.g. with paraplegia - transanal irrigation | 4 | 8-126 |  | 
																			
											| Examination of the large intestine by endoscopy - colonoscopy | not specified | 1-650.2 |  | 
																			
											| Other operations on the nerves or nerve ganglions | not specified | 5-059.2 |  | 
																			
											| Other operations on the nerves or nerve ganglions | not specified | 5-059.81 |  | 
																			
											| Other operations on the nerves or nerve ganglions | not specified | 5-059.90 |  | 
																			
											| Other operations on the nerves or nerve ganglions | not specified | 5-059.a0 |  | 
																			
											| Other operations on the nerves or nerve ganglions | not specified | 5-059.d0 |  | 
																			
											| Other operations on the nerves or nerve ganglions | not specified | 5-059.g0 |  | 
																			
											| Surgical incision into the thyroid gland | not specified | 5-060.3 |  | 
																			
											| Other partial removal of the thyroid gland | not specified | 5-062.7 |  | 
																			
											| Other partial removal of the thyroid gland | not specified | 5-062.8 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | not specified | 5-452.61 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the large intestine | not specified | 5-452.62 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the rectum with access through the anus | not specified | 5-482.00 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the rectum with access through the anus | not specified | 5-482.01 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the rectum with access through the anus | not specified | 5-482.11 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the rectum with access through the anus | not specified | 5-482.31 |  | 
																			
											| Reconstructive operations on the rectum | not specified | 5-486.6 |  | 
																			
											| Other operations on the rectum | not specified | 5-489.2 |  | 
																			
											| Other operations on the rectum | not specified | 5-489.d |  | 
																			
											| Surgical treatment of abnormal passages in the region of the anus (anal fistula) | not specified | 5-491.0 |  | 
																			
											| Surgical treatment of abnormal passages in the region of the anus (anal fistula) | not specified | 5-491.15 |  | 
																			
											| Surgical treatment of abnormal passages in the region of the anus (anal fistula) | not specified | 5-491.16 |  | 
																			
											| Surgical removal or destruction of diseased tissue in the anal region | not specified | 5-492.02 |  | 
																			
											| Surgical treatment of piles (haemorrhoids) | not specified | 5-493.1 |  | 
																			
											| Surgical treatment of piles (haemorrhoids) | not specified | 5-493.4 |  | 
																			
											|  | not specified | 5-493.60 |  | 
																			
											|  | not specified | 5-493.61 |  | 
																			
											| Surgical treatment of piles (haemorrhoids) | not specified | 5-493.70 |  | 
																			
											| Corrective surgery for the anus or anal sphincter muscle | not specified | 5-496.0 |  | 
																			
											| Corrective surgery for the anus or anal sphincter muscle | not specified | 5-496.4 |  | 
																			
											| Other operations on the anus | not specified | 5-499.x |  | 
																			
											| Surgical incision into or removal of tissue lying behind the abdominal cavity (retroperitoneum) | not specified | 5-590.54 |  | 
																			
											| Other reconstructive operations on the vagina | not specified | 5-706.2x |  | 
																			
											| Other surgical removal or destruction of diseased tissue in the external female reproductive organs | not specified | 5-712.0 |  | 
																			
											| Surgical incision into the muscles, tendons or their connective tissue sheaths | not specified | 5-850.b7 |  | 
																			
											| Other surgical incision into the skin or subcutaneous tissues | not specified | 5-892.1d |  | 
																			
											| Extensive surgical removal of diseased tissue from the skin or subcutaneous tissues | not specified | 5-895.2d |  | 
																			
											| Surgical eradication of a pilonidal sinus | not specified | 5-897.11 |  | 
																			
											| Surgical eradication of a pilonidal sinus | not specified | 5-897.x |  | 
																			
											| Surgical removal of diseased tissue from the skin or subcutaneous tissues | not specified | 5-915.0c |  | 
																			
											| Surgical removal of diseased tissue from the skin or subcutaneous tissues | not specified | 5-915.4c |  | 
																			
											| Premature termination of an operation (operation not carried out completely) | not specified | 5-995 |  | 
																			
											| Transfusion of blood, red blood cells or platelets from a donor to a recipient | not specified | 8-800.c0 |  | 
																			
											| Comprehensive pain control for acute pain | not specified | 8-919 |  |