Medical Billing Nightmares... such thing??

YUP!
You bet 'ya.

Well, nothing is too messed up NOT to correct or make up for.
Even if you "fat-finger" a DOS (Date of Service) when entering your claims for your client, there is ALWAYS a way to correct it!

Now, it may not be the most easy way, but it's possible.
The best thing to do is to own up to your error.

1. Call the insurance carrier and explain what you did. They will more than likely direct you to their web site, where you can log in and download certain forms to complete. You will have to mail those forms along with a cover letter and a CORRECTED HCFA to correct. This process is a pain, but a necessary evil to this business.

2. Make sure that you have a software provider that offers you to leave claims in a "review status". The importance of the review status is that it allows you to complete your work and to TEMPORARILY move onto another project. Then, later in the day, you can pull up those claims in review and give them another eye-ball before you actually send.

3. Finally, Tell your client, for example, that you inadvertently entered the DOS as 5/16/07 instead of the ACTUAL DOS of 5/6/07. Tell them that you are all over it and that you've sent in the appropriate change request forms to the carrier and explain when they will see the CORRECTED date. Many insurance carriers ask for a minimum of 30 days from time of receipt to offer a change.

4. COMMUNICATE, COMMUNICATE, COMMUNICATE.

So, the NIGHTMARE in this situation is the actual pain of completing the correction request forms. Making the error and telling your client should NOT be the nightmare part. Just be sure to stay up-front and honest at ALL times, even if your mistakes are worse.

Otherwise, your relationship with your client will be negatively affected AND you may find yourself resigned.