This group comprises preparations used in disorders of the musculo-skeletal system, which cannot be classified in the preceding groups.

Hyaluronic acid injection for intraarticular administration (e.g. 2.5 mg/ampoule) used in the treatment of arthritis is classified in this group. Hyaluronic acid injection used during surgical procedures on the eye (e.g. 4-20 mg/ampoule) is classified in S01K.
Mexiletine indicated for myotonic disorders is classified in C01BB.