X12 837 Claim File Check
Check an X12 837 professional or institutional claim file before submission.
Open the tool → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Claim 1
- Charge equals line total; identifiers and dates pass
- Claim 2
- Charge mismatch, invalid NPI and invalid diagnosis structure
Result: 1 of 2 claims passed all checks; 1 failed with 3 findings.
Answer the questions this way to reach that result. Your own answers give your own.
Inputs and output
- What you enter
One or more X12 837P 005010X222A1 or 837I 005010X223A2 text files, up to 50 MB each. Files remain in the browser tab.
- What you get
- A clean-or-failing count, a claim table with every finding and segment position, and full or redacted CSV downloads. Redacted downloads mask patient names, member IDs and claim references.
What this is
The checker validates envelope controls, identifier formats, diagnosis-code structure, date logic and each claim's line-charge total.
When to use it
Use this after generating a claim file and before sending it to a payer or clearinghouse. It finds structural and arithmetic defects locally without applying payer edits or X12 situational rules.
How this is calculated
Citation
CMS Medicare FFS companion-guide program for 005010X222A1 professional, 005010X223A2 institutional and 005010X224A2 dental claims. This tool checks structure, identifiers, dates and arithmetic without reproducing X12 code descriptions. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.