What goes in Box 4 of the CMS-1500?
The name of the person who holds the policy. When the patient is the subscriber this repeats the patient name or reads SAME; when the patient is a spouse or child, this is the subscriber, not the patient.
What does Box 4 mean for chiropractic billing?
Family plans generate the classic error: a child’s claim goes out with the child in both Box 2 and Box 4, and the payer cannot match a policyholder. Capture subscriber details for every dependent at intake, once, and the problem never reaches a claim.
The mistakes that turn this box into denials
- ✗Dependent claims listing the dependent as the insured
- ✗Subscriber name spelled differently than the payer record
The denials this box causes
- →CO-31 · see the full fix in the denial library
How Cervica fills Box 4
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 1 and 1a · Insurance type and insured ID number
- →Box 6 · Patient relationship to insured
- →Box 11 and 11a to 11d · Insured policy group number and related details
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.