Judgment of the Court (Tenth Chamber) of 19 December 2019.#Amoena Ltd v Commissioners for Her Majesty's Revenue and Customs.#Request for a preliminary ruling from the First-tier Tribunal (Tax Chamber).#Reference for a preliminary ruling — Common Customs Tariff — Tariff classification — Combined Nomenclature — Headings 6212 and 9021 — Mastectomy bras — Implementing Regulation (EU) 2017/1167 — Validity — Notion of ‘accessories’