Please read over your company's FMLA policy; there are Federal guidelines that each company has to follow for FMLA but the use of vacation, sick, and personal leave vary from company to company. Some companies can force you to use all or 50% of any earned time you have on the books, while some companies do not require that you use any of your banked earned time. FMLA is an upaid medical leave to care for yourself, spouse, parent, or child. The option to receive pay is a company policy, and the Short Term Disability pay is also a company benefit (which any company with over 50 employees will have as an option, just a matter of it is a free benefit or a benefit you needed to elect to enroll in by weekly payment).
Also, depending on how your doctor's office completes your FMLA forms will decide if you are approved for FMLA or not. WLS is not an automatic approval for FMLA; you must have a medically necessary reason for having the surgery and being out......if you get someone in HR who feels it is an elective surgery your going out for (example - plastic surgery) then they can deny your request or grant you only part of the time as FMLA.
There are also guidelines we follow regarding the time that is alloted, FMLA is not an automatic 12 weeks of leave. Unfortunately, I get people in my office everyday asking why they don't automatically get 12 weeks if FMLA allows that (some states give 13 weeks because the state law allows 1 more week than federal law). The policy is up to 12 weeks in a 12 month period (your company may go by rolling 12 months or calendar year). Each case is reviewed individually and depending on what the doctor writes and the medical reason, that is how the approval for time off is granted. We will not accept paperwork with a nurses signature, it must have a doctor's signature or stamp on it. Again this varies by company.
Best of luck, and sorry for the long e-mail. It's just that I have had to deny some employees original request for FMLA for WLS and skin removal due to the information provided on the FMLA forms did not meet the requirement. If employees are picking up their forms from me, I let them know in advance what the doctor needs to put on there to get approval or I call their doctor's office and tell them I am faxing the forms back over and can they add in whatever information is needed.