documentclass{article}
usepackage[utf8]{inputenc}
usepackage{xcolor}
usepackage{minted}
usepackage{parskip}

definecolor{codegray}{gray}{0.9}
newcommand{code}[1]{colorbox{codegray}{texttt{#1}}}

begin{document}

code{test code}\
anotherline

end{document}