| KNAK | Knogleoperationer i columna |
| KNAK00 | Excisio sequestris s. fragmentis ossis i columna cervicalis |
| KNAK01 | Excisio sequestris s. fragmentis ossis i col. cervico-thor. |
| KNAK02 | Excisio sequestris s. fragmentis ossis i columna thoracalis |
| KNAK03 | Excisio sequestris s. fragmentis ossis i col. thoraco-lumb. |
| KNAK04 | Excisio sequestris s. fragmentis ossis i columna lumbalis |
| KNAK05 | Excisio sequestris s. fragmentis ossis i col. cerv-thor-lum |
| KNAK06 | Excisio sequestris s. fragmentis ossis i col. lumbosacralis |
| KNAK09 | Excisio sequestris s. fragmentis ossis i columna uden spec |
| KNAK10 | Excisio exostosis ossis/resectio ossis columna cervicalis |
| KNAK11 | Excisio exostosis ossis/resectio ossis columna cervico-thor |
| KNAK12 | Excisio exostosis ossis/resectio ossis columna thoracalis |
| KNAK13 | Excisio exostosis ossis/resectio ossis columna thoraco-lumb |
| KNAK14 | Excisio exostosis ossis/resectio ossis columna lumbalis |
| KNAK15 | Excisio exostosis ossis/resectio ossis col. cerv-thor-lumb. |
| KNAK16 | Excisio exostosis ossis/resectio ossis col. lumbosacralis |
| KNAK19 | Excisio exostosis ossis/resectio ossis columna uden spec |
| KNAK20 | Fenestratio s. inforatio ossis columna cervicalis |
| KNAK21 | Fenestratio s. inforatio ossis columna cervico-thoracalis |
| KNAK22 | Fenestratio s. inforatio ossis columna thoracalis |
| KNAK23 | Fenestratio s. inforatio ossis columna thoraco-lumbalis |
| KNAK24 | Fenestratio s. inforatio ossis columna lumbalis |
| KNAK25 | Fenestratio s. inforatio ossis columna cervico-thoraco-lumb |
| KNAK26 | Fenestratio s. inforatio ossis columna lumbosacralis |
| KNAK29 | Fenestratio s. inforatio ossis columna uden specifikation |
| KNAK30 | Excochleatio (curettage) cystis ossis columna cervicalis |
| KNAK31 | Excochleatio (curettage) cystis ossis col. cervico-thorac. |
| KNAK32 | Excochleatio (curettage) cystis ossis columna thoracalis |
| KNAK33 | Excochleatio (curettage) cystis ossis columna thoraco-lumb. |
| KNAK34 | Excochleatio (curettage) cystis ossis columna lumbalis |
| KNAK35 | Excochleatio (curettage) cystis ossis col. cerv-thor-lumb. |
| KNAK36 | Excochleatio (curettage) cystis ossis columna lumbosacralis |
| KNAK39 | Excochleatio (curettage) cystis ossis columna uden spec |
| KNAK49 | Vertebroplastik |
| KNAK49A | Perkutan vertebroplastik |
| KNAK90 | Knogleoperation i columna cervicalis, anden |
| KNAK91 | Knogleoperation i columna cervico-thoracalis, anden |
| KNAK92 | Knogleoperation i columna thoracalis, anden |
| KNAK93 | Knogleoperation i columna thoraco-lumbalis, anden |
| KNAK94 | Knogleoperation i columna lumbalis, anden |
| KNAK95 | Knogleoperation i columna cervico-thoraco-lumbalis, anden |
| KNAK96 | Knogleoperation i columna lumbosacralis, anden |
| KNAK99 | Knogleoperation i columna uden specifikation, anden |