TMZ is reporting that Chuck Berry died of natural causes and no autopsy is planned.
The rock icon died at age 90 on Saturday in St. Louis after police responded to a call of a medical emergency and attempts to resuscitate him were unsuccessful.
TMZ reported that Berry's personal doctor is expected to sign off on the death certificate claiming the death was natural, though it was unclear at press time what, if any, diseases might have contributed to his death.
The guitarist and songwriter was recognised as one of the fathers of rock 'n' roll. His seven-decade career boasted a string of hits, including classics Roll Over Beethoven and Johnny B. Goode.
He received a lifetime achievement Grammy in 1984 and was among the first inductees to the Rock and Roll Hall of Fame in 1986.
Both the Beatles and the Rolling Stones covered Berry's songs, as did The Beach Boys and scores of other acts - including Elvis Presley.