UN-WHO, “100 Most Popular Drugs not Assigned an ATC Code”, 2021 was an eBook published by Wikipedia Contributors (Focus On). The 100 popular drugs without an ATC code are listed in the table below. The “Anatomical Therapeutics Chemical Classification Codes (ATC) are grouping drugs into 14 classes designed by the letters: ABCDGHJLMNPRSV. The ABCDGHJLMNPRSV abbreviations of anatomical organ systems is shown in the bottom
table. “100 Most Popular Drugs not Assigned an ATC Code” have listing numbers from 1 to 100; # 1 Other, # 2 MADA (Ecstasy) , # 3 Lysergic acid Diethylamide (LSD) … etcetera… to # 100 Benzphetamine. The purpose of ATC is “Defined Daily Dosage” of drugs, referred to as ATC-DDD which is a stamp of approval by UN-WHO. That is why the 100 list not”encoded”; UN-WHO is opposed to the of all 100 items on the list. ‘Ecstasy”, “LSD” …etcetera… are of no use in Modern Medicine, and any “DDD” defined daily dose is usually unlawful.