Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) nonsyndromic hearing loss ?
    ### Response:
    Nonsyndromic hearing loss is a partial or total loss of hearing that is not associated with other signs and symptoms. In contrast, syndromic hearing loss occurs with signs and symptoms affecting other parts of the body.  Nonsyndromic hearing loss can be classified in several different ways.
    