• If this is your first visit, be sure to check out the FAQ & read the forum rules. To view all forums, post or create a new thread, you must be an AAPC Member. If you are a member and have already registered for member area and forum access, you can log in by clicking here. If you've forgotten your username or password use our password reminder tool. To start viewing messages, select the forum that you want to visit from the selection below..
  • Important Note: We will be performing a scheduled maintenance on 1st November 2020. The site will be offline from 7:30PM (MT) till midnight. We apologize for any inconvenience this may cause.

Code First


Seacoast-Dover NH
Best answers
I know that the code first entry means there is another diagnosis code that must be prior to the diagnosis code with the code first entry.

I am wondering if the following note has the same meaning as code first:
"This category is provided to be used as an additional code to identify the viral agent in diseases classifiable elsewhere..."

This note came from the 079 heading. Can these codes, such as 079.4, be used alone or is that note stating that the ICD-9 guidelines require another code first?

Any input would be greatly appreciated.