Below is what you can find in the VA schedule of ratings for this condition. Mine is at the T11-L1 levels and caused several things to happen to include bowel and bladder issues. At the end of the day and if I am reading the below right, the cyst is a min 30% and the other issues are added as long as they cannot be attributed to other stuff… one of my MRI reports states the other issues are explained by the location of the cyst… so that in itself should be evidence and not subjective to another disease process. Added to that, I underwent a bunch of test with the urologist who also stated in his report that he found nothing and thought it was neurogenic bladder but wanted a neurologist to confirm, and mine did. So for my case I think how this is applies... is 30% for the min and the rest for the bowel and bladder issues which should come back 30 and 40% (looked at the reports and then the schedule of ratings). You should look up whatever other issues the cyst has caused, they can and should be rated separately in the perspective area it effects. I should have an answer on mine in a couple weeks, I will let you know how it goes. Good luck!
§4.124a Schedule of ratings—neurological conditions and convulsive disorders
8024 Syringomyelia:
Minimum rating......................................................................................................... 30
Note: It is required for the minimum ratings for residuals under diagnostic codes 8000-8025, that there be ascertainable residuals. Determinations as to the presence of residuals not capable of objective verification, i.e., headaches, dizziness, fatigability, must be approached on the basis of the diagnosis recorded; subjective residuals will be accepted when consistent with the disease and not more likely attributable to other disease or no disease. It is of exceptional importance that when ratings in excess of the prescribed minimum ratings are assigned, the diagnostic codes utilized as bases of evaluation be cited, in addition to the codes identifying the diagnoses.