C# Programming Extracting From PDF

I am looking for some help in creating a relatively simple program in C# that is able to parse a PDF for certain criteria within a date range and print those to a text box in a window. A brief description of the project is that I am looking to use this program to search a patient’s treatment history that is presented in PDF form for work (I’m a dentist) but wanted to ensure that the contents of the program were not copyright protected. I am wanting the program to populate if a dental filling has been completed (some within the last 3 years and some within the lifetime) and if so, what tooth number (and surfaces) the filling is on. Thankfully it is listed line by line on these PDF’s. These fillings and criteria are found with a CDT code that starts with a “D” and followed by 4 numbers. I have attached an example of one of these PDF’s to help clarify what the source PDF looks like. I have also attached a picture of an idea of what I would like the form to look like regarding the separation of the information. I would like to print the findings in text boxes under the category “Eligible Sealants”, “Existing Fillings >3 Years Old”, “Existing Fillings < 3 Years Old”, and “Other”. The CDT codes I am looking to search are D0120, D0145, D0150, D0330, D1351, D2330, D2331, D2332, D2335, D2391, D2392, D2393, and D2394. I am also looking to have an additional boolean added to see if the patient is eligible for an exam (No previous D0120 or D0150 within the previous 6 months) and to print out a Yes/No if the patient is eligible. Please let me know of any questions/concerns you may have or if I may be able to clarify additional information.