Morris had been hospitalized on life support for months and Commissioner Dermot Shea announced he died Saturday.
"The condolences & prayers of the entire department are with Billy & his loved ones during this difficult time," Shea said.
Morris is considered the highest-ranking NYPD official to die of coronavirus.
Morris was 61, a three-star chief, and oversaw the traffic division and the NYPD's highway patrol.
He was elevated to this command last December when Shea became commissioner and began assembling his team.
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