Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) propionic acidemia ?
    ### Response:
    Propionic acidemia is an inherited disorder in which the body is unable to process certain parts of proteins and lipids (fats) properly. It is classified as an organic acid disorder, which is a condition that leads to an abnormal buildup of particular acids known as organic acids.
    