Steve Wright, the BBC DJ, died from a ruptured ulcer in his stomach.
The broadcaster, one of the most familiar voices on the UK's airwaves, died in February at the age of 69.
In May, Westminster Coroner's Court confirmed that an inquest would not be required.
Causes of death listed on the certificate were acute peritonitis and a perforated gastric peptic ulcer, the BBC reported.
Peritonitis is an infection of the lining of the stomach, according to the NHS. A perforated ulcer is a rarer complication, when the lining of the stomach splits open.
The broadcaster reported that Wright's death had been registered at Westminster Register Office by a family member on July 3.
The Metropolitan Police previously said the death, at a flat in the Marylebone area of central London, "was unexpected, but is not being treated as suspicious".
Joining BBC Radio 1 in 1980 to host a Saturday evening show, Wright went on to hold a variety of positions.
After a stint at commercial radio, he returned to BBC Radio 2 in 1996 to host Steve Wright's Saturday Show and Sunday Love Songs, and three years later presented Steve Wright in the Afternoon every weekday on Radio 2.
Wright stepped down in September 2022, replaced by Scott Mills in a schedule shake-up, but continued to present Sunday Love Songs on BBC Radio 2. He was made an MBE in the 2024 New Year Honours for services to radio.
In a tribute released following his death, his family said : "In addition to his son Tom and daughter Lucy, Steve leaves behind his brother Laurence and his father Richard.
"Also, much-loved close friends and colleagues, and millions of devoted radio listeners who had the good fortune and great pleasure of allowing Steve into their daily lives as one of the UK's most enduring and popular radio personalities."