A system comprising: an acoustic stimulation management facility that is configured to present, during a first time period, a tone in isolation to a patient by way of a receiver (302, 1202) in communication with an ear of the patient, the tone having a predetermined frequency included in a frequency band, and present, during a second time period, the tone together with a masking signal to the patient by way of the receiver, the masking signal masking frequencies not included within the frequency band; and a processing facility communicatively coupled to the acoustic stimulation management facility and that is configured to use an electrode (112, E1-E8) located within an intracochlear region of the patient that is associated with the frequency band to record, during the first time period, a first evoked response that occurs in response to the presentation of the tone, and record, during the second time period, a second evoked response that occurs in response to the presentation of the tone together with the masking signal, and determine, based on the first and second evoked responses, whether the intracochlear region is dead or not, wherein the processing facility is further configured to: determine that the intracochlear region is not dead if the second evoked response is within a predetermined range of the first evoked response; and determine that the intracochlear region is dead if the second evoked response is not within the predetermined range of the first evoked response. an acoustic stimulation management facility that is configured to present, during a first time period, a tone in isolation to a patient by way of a receiver (302, 1202) in communication with an ear of the patient, the tone having a predetermined frequency included in a frequency band, and present, during a second time period, the tone together with a masking signal to the patient by way of the receiver, the masking signal masking frequencies not included within the frequency band; and present, during a first time period, a tone in isolation to a patient by way of a receiver (302, 1202) in communication with an ear of the patient, the tone having a predetermined frequency included in a frequency band, and present, during a second time period, the tone together with a masking signal to the patient by way of the receiver, the masking signal masking frequencies not included within the frequency band; and a processing facility communicatively coupled to the acoustic stimulation management facility and that is configured to use an electrode (112, E1-E8) located within an intracochlear region of the patient that is associated with the frequency band to record, during the first time period, a first evoked response that occurs in response to the presentation of the tone, and record, during the second time period, a second evoked response that occurs in response to the presentation of the tone together with the masking signal, and determine, based on the first and second evoked responses, whether the intracochlear region is dead or not, wherein the processing facility is further configured to: determine that the intracochlear region is not dead if the second evoked response is within a predetermined range of the first evoked response; and determine that the intracochlear region is dead if the second evoked response is not within the predetermined range of the first evoked response. use an electrode (112, E1-E8) located within an intracochlear region of the patient that is associated with the frequency band to record, during the first time period, a first evoked response that occurs in response to the presentation of the tone, and record, during the second time period, a second evoked response that occurs in response to the presentation of the tone together with the masking signal, and record, during the first time period, a first evoked response that occurs in response to the presentation of the tone, and record, during the second time period, a second evoked response that occurs in response to the presentation of the tone together with the masking signal, and determine, based on the first and second evoked responses, whether the intracochlear region is dead or not, wherein the processing facility is further configured to: determine that the intracochlear region is not dead if the second evoked response is within a predetermined range of the first evoked response; and determine that the intracochlear region is dead if the second evoked response is not within the predetermined range of the first evoked response. determine that the intracochlear region is not dead if the second evoked response is within a predetermined range of the first evoked response; and determine that the intracochlear region is dead if the second evoked response is not within the predetermined range of the first evoked response.