Overview of the Claims Lifecycle
Claims processing transforms coded clinical services into billable transactions submitted to payers for reimbursement. Understanding this lifecycle helps HIM professionals identify where coding, documentation, and data quality issues can disrupt revenue flow.
Standard Claim Forms
Two standardized forms dominate healthcare claims submission. The CMS-1500 is used for professional services billed by physicians and other non-institutional providers. The UB-04, also known as the CMS-1450, is used for institutional claims submitted by hospitals, skilled nursing facilities, and other facility-based providers. Each form has specific required fields, including patient demographics, diagnosis codes, procedure codes, and provider identifiers such as the National Provider Identifier.
Electronic Claims Submission
HIPAA established standard electronic transaction formats for claims submission, primarily the ASC X12 837 transaction set, which replaces the paper forms in electronic format. Electronic submission speeds processing, reduces manual entry errors, and is now required for most Medicare claims except in limited exception circumstances.
Clearinghouses
A clearinghouse acts as an intermediary between the provider and the payer, translating claims into the correct format, performing edit checks for completeness and accuracy, and routing claims to the appropriate payer. Clearinghouses can significantly reduce claim rejection rates by catching errors before submission to the payer.
Common Clearinghouse Edits
- Verifying required fields are complete
- Checking diagnosis and procedure code validity
- Confirming provider identifiers match payer enrollment records
- Applying payer-specific formatting rules
Remittance Advice
After a claim is adjudicated, the payer returns an Electronic Remittance Advice, or ERA, using the ASC X12 835 transaction, or a paper Explanation of Benefits, or EOB. These documents detail what was paid, adjusted, or denied, along with reason and remark codes explaining any discrepancies between billed and paid amounts.
Timely Filing Requirements
Payers impose timely filing deadlines, the window within which a claim must be submitted after the date of service. Deadlines vary by payer, commonly ranging from 90 days to one year. Claims submitted after the deadline are typically denied outright with limited appeal options, making timely and accurate claim submission a critical revenue cycle priority.
Role of HIM in Claims Accuracy
HIM professionals contribute to claims accuracy through precise coding, thorough documentation review, and collaboration with billing staff to resolve coding-related claim edits before submission, reducing denials and supporting timely reimbursement.