You have several issues.
Concerning the 16% impairment rating:
The insurance company has the right to dispute the impairment rating. You have the right to ask for a hearing. The hearing officer is the "finder of facts". The hearing officer will hear arguments from you and the insurance company's attorney and will review all the medical records and the DD findings. Then will decide which impairment rating is correct.
You and the insurance company both have the right to appeal the hearing officers findings to the appeal panel. The appeal panel will decide if the hearing officers opinion is correct.
You and the insurance company both have the right to appeal to a court to reverse the appeal panel's decision.
Since January 1st, the DD has additional duties including extent of injury.
You and the insurance company have the right to request a DD exam to determine the extent of the injury. You might want to consider doing this.
The DD opinion has presumptive weight unless the great weight of the medical evidence is against it.
The insurance company will send your records to a "chart reviewer" (I have another name but it is not nice). The reviewer will write what ever the insurance company wants. Remember they work for the insurance company.
If the reviewer did not exam you insure he is asked if he examined you. Get the "no" in the records.
If a physician assistant shows up, ask if he is a licensed physician. Ignore all the experience he has (it is comendable that he was a medic in the army and went college on the GI bill, and worked during college, and volunteers at the animal shelter, and doesn't mean a thing concerning your case).
Get into the records that he is a PA and not a licensed physician. You may have to ask him specifically if he is a doctor of medicine or a doctor of osteopathy.
Some PS's think they are licensed physicians. Don't get buffaloed. Don't get angry at a hearing, just get the facts into the record.
If the insurance company doctor did not exam you, point that ouit at all hearings.
If an insurance company doctor does exam you, take your treating doctor with you to the exam. You have that right and the doctor will be paid for attending. You need to do this so your doctor can report at a hearing if the examination was complete. It won't be unless another doctor is there. Insurance company doctors are so good, they can do a full history and physical examinations in five minutes or less and while talking of the telephone.
Having your doctor report that at a hearing in front of the insurance comapny doctor and attorney gets everyones attention.
Your employement issues are not in the scope of the Division of Workers Compensation. Texas is an 'employee at will' state. The company can end your employement for any reason not forbidden by federal law.
If your compnay violated it's own rules, contact the human resources department and file a greivance.
I do not know if RSD is a condition that is covered by the federal disability laws. If it is you may also have a case. It might be particuly if you were issued a disable parking permit.
I am not a lawyer, so I cannot give any legal advice, these are just my opinions based on going around the block a couple of times with workers comp issues.
The DWC has an Office of Injuried Councel (an ombudsman program). If you do not have an attorney already on your case, call the field office handling your case and ask to talk with or see an ombudsman. They will help guide you through the DWC maze.
Has your treating doctor done an impairment rating. If he/she is not impairment rating certified, you may want to have him/her do a referral to a doctor who is impairment rating certified and have a third impairment rating determined.
Right now, a hearing officer has only two options, 4% and 16%.
Don't get discouraged, keep working the system.
If you use an omudsman, ask if there is any other DD examination that needs to be done in addition to an extent of injury.
Expect several months delay as your case works its way through the system.
Did the DD reexam you or use the previous findings. Can a case be made that you were not at clinical MMI; ie, that your condition was not stable on the day of the DD exam.
Are you at/near statutory MMI? That is 104 weeks after you start drawing benefits.
Good luck. Allen