Box 1a - Insured's ID Number

Box Definition

Box 1a on the CMS-1500 is where the insured's ID number is entered as shown on their insurance ID card.

In AveaOffice

To change the insured's ID on the claim form:

1. Navigate to the patient's Intake > Insurance tab.
2. Click into the insurance set primary payer for the claim.
3. Go to the Policy Holder tab.
4. Click Edit.
5. Edit the Insurance ID field.
   
6. Click Save.

EDI Loop/Segment

Loop 2010BA, Segment NM109