atc code m09 atc code m09 atc code m09 other drugs for disorders of the musculo-skeletal system is a therapeutic subgroup of the anatomical therapeutic chemical classification system, a system of alphanumeric codes developed by the world health organization (who) for the classification of drugs and other medical products. subgroup m09 is part of the anatomical group m musculo-skeletal system. atc codes m musculo-skeletal system m01 anti-inflammatory and antirheumatic products m02 topical products for joint and muscular pain m03 muscle relaxants m04 antigout preparations m05 drugs for treatment of bone diseases m09 other drugs for disorders of the musculo-skeletal system a b c d g h qi j l m n p r s v codes for veterinary use (atcvet codes) can be created by placing the letter q in front of the human atc code: for example, qm09. atcvet codes without corresponding human atc codes are cited with the leading q in the following list.national issues of the atc classification may include additional codes not present in this list, which follows the who version. m09a other drugs for disorders of the musculo-skeletal system m09aa quinine and derivatives m09aa01 hydroquinine m09aa72 quinine, combinations with psycholeptics m09ab enzymes m09ab01 chymopapain m09ab02 collagenase clostridium histolyticum m09ab03 bromelains m09ab52 trypsin, combinations m09ax other drugs for disorders of the musculo-skeletal system m09ax01 hyaluronic acid m09ax02 chondrocytes, autologous m09ax03 ataluren m09ax04 drisapersen m09ax05 aceneuramic acid m09ax06 eteplirsen m09ax07 nusinersen m09ax08 golodirsen m09ax09 onasemnogene abeparvovec m09ax10 risdiplam m09ax11 palovarotene m09ax12 viltolarsen m09ax13 casimersen qm09ax90 equine stem cells qm09ax99 combinations