HCFA 1500 Box 23 - Print CLIA number on claim form

If you bill for laboratory services rendered to your patient, your CLIA number must be printed in box 23 of the HCFA-1500 claim form. Once you have your CLIA number listed in the settings on your account, it will automatically print in box 23 when a laboratory test code is billed.


To enter this information on your account, please follow the steps outlined below:

1. Hover over Account and select Provider Settings:

2. Select the Medical Billing tab


3. Enter your CLIA number and expiration date in the boxes provided. Click Update Entire Profile at the bottom of the screen when complete.



4. Once entered and a lab test is entered into a patient's claim, the CLIA number will appear in box 23 on the paper HCFA and in loop 2300 (claim information) and/or loop 2400 (service line information) for electronic claims.