OP-KISS component (List of indicator operative procedures)
Types of operative procedure and their German abbreviations are listed below. See the German language web-site for further information about each type of operative procedure.
English versions of the indicator operative procedure definitions will be posted here over the next few months.
Arthroscopy on the knee
Reductions of fractured proximal femurs
Surgery on aorta abdominalis
Carotid artery reconstruction
Arterial reconstruction—lower extremities
Correction of deformity or malposition of the hallux
Lobectomy of lung
Lumbar spinal surgery
Type of indicator operative procedure
This term includes all given procedures. When one indicator operative procedure is chosen (NEPH, for example), all invasive procedures must be included in data collection that have one of the pre-determined codes (5-553 for partial kidney resection or 5-554 for nephrectomy, for example).
Data collection cannot be limited to single codes. Comparison between hospitals is otherwise not possible.
Any operation can involve multiple procedure codes, one primary procedure code and possibly many secondary procedure codes. The surgeon decides for each surgery which procedure is primary. For the purposes of KISS, only those primary procedures that are KISS indicative surgeries should be included in data collection. The presence of certain secondary procedures can be important in certain cases for some indicative surgeries (COBY, for example).
Surgical revisions or repeat procedures in the same operational area within 30 days of surgery are not counted as indicator operative procedures. In any case, surgical revisions usually have a different procedure code as the first surgery. In some kinds of surgery, however, surgical revision can have the same procedure code as the first surgery (COLO, GC, for example). These revisions may not be counted again on the operation list.
If an invasive procedure is carried out after an indicative surgery in the same operational area as that surgery, surveillance of the indicative surgery is stopped (see surveillance protocol chapter 4.4).
A repeated invasive procedure is counted when it is carried out after 30 days.
The surgery is only counted once in double-sided operations because there is only one primary procedure and because KISS only considers primary procedures.
During very extensive surgeries it is possible that many procedures will be employed that could be indicative surgeries (the extensive surgery to the colon corresponding with the removal of the gall bladder or appendix, for example). Only the primary surgery is relevant for KISS.
OPS-301 is the German variant of the OPS coding system and is not available in English.
Codes have as many digits as necessary as to clearly define the indicative operation.
Defining codes always include all the codes with more digits. For example, the defining code 5-820 includes the codes 5-820.02, 5.820.20, and 5-820.4, but does not include 5-821.
The placeholder _ represents any character in this line of the code. For example, the head figure 5-811._h can include the codes 5-811.0h; 5-811.9h and 5-811.ah. It does not include 5-811.x because there is no “h” in the sixth place.