atc code l03 atc code l03 atc code l03 immunostimulants 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 l03 is part of the anatomical group l antineoplastic and immunomodulating agents. atc codes l antineoplastic and immunomodulating agents l01 antineoplastic agents l02 endocrine therapy l03 immunostimulants l04 immunosuppressants 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, ql03. 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. l03a immunostimulants l03aa colony stimulating factors l03aa02 filgrastim l03aa03 molgramostim l03aa09 sargramostim l03aa10 lenograstim l03aa12 ancestim l03aa13 pegfilgrastim l03aa14 lipegfilgrastim l03aa15 balugrastim l03aa16 empegfilgrastim l03aa17 pegteograstim l03aa18 efbemalenograstim alfa ql03aa90 pegbovigrastim l03ab interferons l03ab01 interferon alfa natural l03ab02 interferon beta natural l03ab03 interferon gamma l03ab04 interferon alfa-2a l03ab05 interferon alfa-2b l03ab06 interferon alfa-n1 l03ab07 interferon beta-1a l03ab08 interferon beta-1b l03ab09 interferon alfacon-1 l03ab10 peginterferon alfa-2b l03ab11 peginterferon alfa-2a l03ab12 albinterferon alfa-2b l03ab13 peginterferon beta-1a l03ab14 cepeginterferon alfa-2b l03ab15 ropeginterferon alfa-2b l03ab16 peginterferon alfacon-2 l03ab60 peginterferon alfa-2b, combinations l03ab61 peginterferon alfa-2a, combinations ql03ab90 interferom omega, feline origin l03ac interleukins l03ac01 aldesleukin l03ac02 oprelvekin l03ax other immunostimulants l03ax01 lentinan l03ax02 roquinimex l03ax03 bcg vaccine l03ax04 pegademase l03ax05 pidotimod l03ax07 poly i:c l03ax08 poly iclc l03ax09 thymopentin l03ax10 immunocyanin l03ax11 tasonermin l03ax12 melanoma vaccine l03ax13 glatiramer acetate l03ax14 histamine dihydrochloride l03ax15 mifamurtide l03ax16 plerixafor l03ax17 sipuleucel-t l03ax18 cridanimod l03ax19 dasiprotimut-t l03ax21 elapegademase ql03ax90 feline interleukin-2 recombinant canarypox virus (viral vector)