Judgment of the General Court (Fourth Chamber) of 16 December 2020.#HA v European Commission.#Civil service – Officials – Reimbursement of medical expenses – Reimbursement ceiling for sleep apnoea devices – Action for annulment – Measure not merely confirmatory – Sufficient interest to institute proceedings – Admissibility – Joint rules on sickness insurance for officials – General implementing provisions.#Case T-736/19.