Is 18 years old considered a pediatric?

Hello,

"There is no age limit for seeing a pediatrician
Originally defined as age 18, raised to age 21 in the 1960s, the upper age limit for pediatric care was eliminated by the American Academy of Pediatrics in 2017. The rationale: Transition to adult care should be specific to patient needs, not an arbitrary number."

Source: Columbia University
Irving Medical Center

Regards, masso