Boxes 28, 29, 30: Total charge, amount paid, balance
By Dr. Daniel Turner, DC · Reviewed September 2, 2026
What goes in Boxes 28, 29, 30 of the CMS-1500?
The claim arithmetic: Box 28 totals the line charges, Box 29 reports what has already been paid toward them, most relevantly prior payer payments on secondary claims, and Box 30, where used, carries the balance.
What does Boxes 28, 29, 30 mean for chiropractic billing?
On secondary claims Box 29 is where the primary’s payment shows, and the math has to reconcile with the attached primary remittance. Software totals these automatically; the box matters to humans mostly when reviewing why a secondary claim keeps pending for the primary payment details.
The mistakes that turn this box into denials
- ✗Box 29 missing the primary payment on secondary claims
- ✗Totals disagreeing with the sum of the lines
The denials this box causes
- →CO-22 · see the full fix in the denial library
How Cervica fills Boxes 28, 29, 30
Cervica generates the CMS-1500 and its electronic 837P equivalent from the chart and the payer's own rules: identifiers from the verified insurance record, modifiers and codes per payer, and pre submission scrubbing that flags exactly the mistakes listed above before a claim leaves the building.
Related boxes
- →Box 24A to 24J · The service lines
- →Box 9 and 9a to 9d · Other insured information
General information for billing teams, not billing advice for any individual claim. The NUCC's 1500 Claim Form instructions and each payer's companion guides control.