The death of a drug-addled Bronx man during a January run-in with police has been ruled a homicide by the city Medical Examiner’s Office, which said the victim’s fatal “physical struggle” with cops included “neck compression.”

Dwayne Pritchett, 48, had a cocktail of drugs including cocaine and heroin in his system when he lunged for an officer’s weapon inside his Kingsbridge apartment, the ME’s office said.

Pritchett also suffered from heart disease and an airway obstructed by “food bolus” at the time, both of which were contributing factors in his death, the office said.

The ME noted that the “homicide” finding bears no criminal weight but just indicates that “the fatality occurred as a result of the actions of another individual(s).”

Pritchett’s 71-year-old father called cops to the Reservoir Avenue apartment he shared with his son around 5 p.m. Jan. 28 when Dwayne locked himself inside his bedroom, authorities said.

When police arrived, the younger Pritchett opened the door of his room, and cops spied crack cocaine, heroin and a .40-caliber handgun magazine strewn across the floor.

As officers moved in to cuff him, Pritchett tried to snatch the gun from one of the cop’s holsters, and a struggle ensued, authorities said.

Pritchett was sweating profusely and then passed out suddenly as cops were hauling him from the room after subduing him.

EMS administered Narcan — a medication that blocks the effects of opioids — and administered CPR, but Pritchett was pronounced dead at New York-Presbyterian The Allen Hospital.

Pritchett had a lengthy rap sheet as well as a history of drug abuse, a police source told The Post at the time.

The NYPD’s Force Investigation Division has opened an investigation into the circumstances of the death.

Additional reporting by Tina Moore