Liam Wallwork's grey VW Polo was found upside down in the middle of a road in Gamston, following a road traffic collision, just after midnight, on July 3, said prosecutor Sarah Holland.
He presented himself to police and said he had been drinking, and he failed a roadside breath test.
But he was putting a seatbelt on when he bit the officer on his left arm, leaving a " particularly unattractive injury."
Wallwork was taken to King's Mill Hospital, in Sutton, in case he was injured where he refused to provide a blood sample.
"Biting the officer within a pandemic is a dangerous injury with regard to communicable diseases," Ms Holland told the court.
When he was interviewed afterwards, Wallwork said "no-comment" to all questions.
The court heard he has a previous conviction for drink driving, from August 2018, when he was fined £275 and banned from driving for 12 months.
Wallwork, aged 24, of Beech Walk, Elkesley, Retford, admitted failing to provide a specimen for analysis and assault by beating of an emergency worker , when he appeared at Mansfield Magistrates Court, on Thursday.
Pars Samrai, mitigating, said a pre-sentence report would be necessary.
Magistrates heard the probation service was too short-staffed to provide one at the hearing, and the case was adjourned until September 7.
An interim disqualification, banning him from driving, was imposed until he is sentenced.