Claims Adjudication Lifecycle
Claims adjudication is the process by which a health insurance payer evaluates a submitted claim and determines the amount to be paid. This is the core operational function of any payer organization.
Adjudication Steps
1. Intake / Receipt
- Claim received (EDI 837 via clearinghouse, paper, or direct submission)
- Claim logged in the payer's claims processing system
- 277CA acknowledgment sent to confirm receipt
2. Front-End Validation
- Format validation — Is the claim structurally valid? Required segments present?
- Duplicate check — Has this exact claim already been submitted?
- Timely filing — Was the claim submitted within the allowed timeframe? (typically 90-365 days from date of service)
- Provider verification — Is the provider enrolled and contracted with the plan?
3. Eligibility Verification
- Was the member actively enrolled on the date(s) of service?
- What plan/product was in effect?
- Were the services within the member's benefit period?
4. Benefit Determination
- Are the billed services covered benefits under the member's plan?
- Are there any exclusions or limitations (e.g., annual visit limits, age restrictions)?
- Does the service require prior authorization? If so, was it obtained?
- Is the provider in-network or out-of-network?
5. Medical Policy / Clinical Edits
- Medical necessity — Does the diagnosis support the procedure? (NCCI edits, LCD/NCD policies)
- Code auditing — Are code pairs valid? (unbundling detection, modifier validation)
- Gender/age appropriateness — Is the procedure appropriate for the patient's demographics?
6. Pricing
- Apply contracted rates — Fee schedule amounts, per diem rates, DRG payments, capitation offsets
- Calculate allowed amount based on the lesser of billed charges vs. contracted rate
- Apply multiple procedure reductions if applicable
- Apply assistant surgeon, bilateral procedure, or other pricing rules
7. Coordination of Benefits (COB)
- Is this the primary, secondary, or tertiary payer?
- If secondary, how much did the primary payer already pay?
- Apply COB rules to calculate this payer's responsibility
8. Member Cost-Sharing
- Calculate deductible applied (how much of the member's annual deductible remains?)
- Apply copay (fixed dollar amount per service type)
- Calculate coinsurance (member's percentage of allowed amount after deductible)
- Check against out-of-pocket maximum (if met, plan pays 100%)
9. Payment Decision
- Pay — Claim approved, payment generated
- Deny — Claim denied with specific denial reason codes
- Pend — Claim suspended for manual review, additional information needed, or clinical review
10. Payment & EOB Generation
- Generate EDI 835 (ERA) for provider
- Generate EOB for member
- Process EFT payment to provider's bank account
Adjudication Timing
- Clean claims — Federal and state prompt-pay laws require timely adjudication (typically 30 calendar days for electronic claims, 45 for paper)
- Pended claims — May take additional time depending on medical review
- Auto-adjudication rate — Top payers achieve 85-90% auto-adjudication (no human touch)
Common Denial Reasons
- Member not eligible on date of service
- Prior authorization not obtained
- Service not a covered benefit
- Duplicate claim submission
- Timely filing limit exceeded
- Medical necessity not met
- Provider not in network / not enrolled
- Incorrect coding (unbundling, invalid modifier)
- Coordination of benefits issue
- Missing or invalid information