Machine learning model for extracting diagnoses, treatments, and key dates

A method for determining a patient event date, the method comprising:

• accessing a database storing a medical record associated with a patient, the medical record comprising unstructured data;
• analyzing the unstructured data to identify a plurality of snippets of information in the medical record associated with a patient event;
• determining a date associated with each of the plurality of snippets;
• identifying a plurality of query periods associated with the patient event;
• and
• generating, for each of the query periods, a probability of whether the patient event occurred during the query period based on the plurality of snippets and the associated dates.

A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors, cause the one or more processors to perform a method for determining a patient event date, the method comprising:

• accessing a database storing a medical record associated with a patient, the medical record comprising unstructured data;
• analyzing the unstructured data to identify a plurality of snippets of information in the medical record associated with a patient event;
• determining a date associated with each of the plurality of snippets;
• identifying a plurality of query periods associated with the patient event;
• and
• generating, for each of the query periods, a probability of whether the patient event occurred during the query period based on the plurality of snippets and the associated dates.