Withdraw the denial of low-income medical assistance coverage for the second cochlear implant.

Literal

2nd-time [genitive-の] cochlear-implant [genitive-への] low-income medical-assistance system [genitive-の] application non-permission [object-を] withdraw.

Extremely heavy bureaucratic/legal register. The sentence is a noun phrase packed with nominal modifiers stacked via の. 取り下げる ('to withdraw, retract') is used here in its dictionary form, functioning as an imperative or as a title (e.g. a petition item). Translating this kind of dense Sino-Japanese compound chain is a typical challenge for legal translators. への is the compound particle (へ+の) for 'toward X' as a pre-nominal modifier.