doc25

After doing some research for you there is a possibility that you were rated incorrectly. You may need to appeal.
I'm not trying to get your hopes up because this info requires it to be scrutinized by our more experienced members. I invite other members to please correct me if I'm wrong with any of the information provided.
 
You are SC for prostate cancer. – Prostate cancer, code 7528
Were you ever treated for it at a VA facility/other facility? Did you receive a temporary 100% rating while you were being treated for prostate cancer? Is the prostate cancer still active? Is it inactive now?
Code 7529: Benign tumors affecting the genitourinary system are rated based on how they affect the systems around them. For example, if the condition interferes with renal functioning, then it would be rated under the renal rating system.
 
Code 7528: Malignant cancer is rated 100% while it is active. This 100% rating will continue for the first 6 months after the last treatment. The condition will then be reevaluated. If it is no longer active, then it is rated on any lasting symptoms like a benign condition.
 
Notice the last sentence "If it is no longer active it is rated on any lasting symptoms like a benign condition". This is telling the rater to refer to code 7529.
7529 Benign neoplasms of the genitourinary system:
Rate as voiding dysfunction or renal dysfunction, whichever is predominant.
 
Code 7529 clearly states what you should have been rated as VOIDING DYSFUNCTION. Regardless, of what  your urinary frequency  symptoms are. Code 7529 clearly does not state to RATE AS URINARY DYSFUNCTION. It appears you were erroneously or deliberately rated to low-ball you. Why? This is the only rational explanation I could come up with below.
If they rated you as Voiding Dysfunction ; and your symptoms were to become worse (which they may get worse over time) Urinary Frequency is capped at 40%. VOIDING DYSFUNCTION is capped at 60%.
Urinary Frequency: A condition is rated under this system if it causes the body to urinate more often than normal. If you have to urinate 5 or more times during the night, or if you have to urinate more than every hour during the day, it is rated 40%. If you have to urinate 3 or 4 times during the night, or if you have to urinate every 1 to 2 hours during the day, it is rated 20%. If you have to urinate 2 times during the night, or if you have to urinate every 2 to 3 hours during the day, it is rated 10%.
Voiding Dysfunction: All urinary conditions that cannot be rated as urinary frequency or obstructed voiding are rated by this system. If the condition requires the use of a catheter or other urinary assistive appliance to remove urine from the bladder, or if the condition requires the use of absorbent materials (like pads or Depends) that must be changed more than 4 times a day, then it is rated 60%. If it requires absorbent materials that must be changed 2 to 4 times a day, then it is rated 40%. If it requires absorbent materials that must be changed only once a day, then it is rated 20%.
 
 
 

The VA relies on the Joint Service Records Research Center to assist in PTSD due to Sexual Assault claims such as yours and any other claims.
 
How to Make a Request
Research requests to JSRRC or USMC Archives can be made by letter or by using the VA Statement in Support of Claim form. Provide as much specific information as possible in the request, such as details of when and where an incident occurred. A veteran may be asked for additional information in order for the request to be met, or may be redirected to another repository of documents that is more likely to hold the requested information.
Requests to JSRRC can be sent to:

U.S. Army and Joint Services Records Research Center
7701 Telegraph Road
Kingman Building, Room 2C08
Alexandria, VA 22315-3802
 
I hope this information helps.