Below is an instruction from Human. Write a response.
    ### Instruction:
    What causes Congenital diaphragmatic hernia ?
    ### Response:
    What causes congenital diaphragmatic hernia? Congenital diaphragmatic hernia (CDH) can occur as an isolated finding, as part of a genetic syndrome or chromosome abnormality, or as part of a complex but nonsyndromic set of findings. Currently, about 15%-20% of individuals with CDH have an identifiable cause for their diaphragm defect.
    