Support the tracking of 'Laparoscopic Pelvic lymph node dissection' procedures.

[mgurley]

From meeting with Arden on 8/16/2016.

Above and beyond tracking prostatectomy procedures, we would like to be able to track if a patient had a Laparoscopic Pelvic lymph node dissection' procedure. No sub datapoints. All the standard prostate cancer pathological findings will be collected as sub datapoints of the prostatectomy procedure.