A coverage question that takes a day is a claim that pays wrong
Before any claim can be processed, the TPA must answer a fundamental question: is this member eligible for this service on this date?
In legacy systems, eligibility verification is a multi-step manual process:
- Check the enrollment database (often batch-updated overnight)
- Verify the plan is active for the date of service
- Look up benefit details for the service type
- Check accumulator balances (deductible, OOP max)
- Determine if prior authorization is required
This process can take minutes per inquiry when done manually, or hours when the enrollment data hasn't been updated yet.
What Real-Time Eligibility Looks Like
A modern eligibility service returns a complete response in under 200 milliseconds:
Coverage verification
- Is the member enrolled?
- Is the plan active on the date of service?
- What network tier applies?
- Is there COBRA continuation coverage?
Benefit details
- Deductible: individual and family limits, amount used, amount remaining
- Out-of-pocket maximum: limit, used, remaining
- Copay amounts: PCP, specialist, ER, urgent care
- Coinsurance percentage: in-network and out-of-network
- Service-specific benefits and exclusions
Accumulator status
Real-time accumulator tracking is the critical capability that separates modern systems from legacy ones. Accumulators track:
- Individual deductible spent year-to-date
- Family deductible spent year-to-date
- Individual out-of-pocket spent year-to-date
- Family out-of-pocket spent year-to-date
- Benefit-specific limits (e.g., 20 PT visits per year)
Prior authorization flags
The eligibility response should indicate when services require prior authorization:
- High-cost procedures (joint replacements, spinal surgery)
- Advanced imaging (MRI, CT, PET scans)
- Specialty medications
- Out-of-network referrals
EDI 270/271 Integration
The 270 Inquiry
When a provider (or their system) sends a 270 eligibility inquiry, it specifies:
- Member identification (subscriber ID, name, date of birth)
- Service type code (what kind of service is being checked)
- Date of service (when the service will be rendered)
- Provider information (who is asking)
The 271 Response
The 271 response contains:
- Coverage status (active, inactive, COBRA)
- Benefit details for the requested service type
- Deductible and OOP status
- Copay and coinsurance information
- Coverage dates and limitations
- Prior authorization requirements
Response time standards
CAQH CORE operating rules require 270/271 responses within:
- Real-time: 20 seconds for web-based inquiries
- Batch: 2 business days for batch submissions
Modern systems routinely respond in under 200 milliseconds, far exceeding the standard.
Why Speed Matters for Eligibility
Point-of-Service Decisions
When a patient is at the front desk, the practice needs to know immediately:
- Is the patient covered?
- What's the copay?
- Has the deductible been met?
- Is prior auth required for the planned procedure?
A 5-second lookup enables informed point-of-service decisions. A 5-minute lookup means the patient waits or the check is skipped.
Claims prevention
Real-time eligibility checks prevent claims for ineligible members, the number one reason for claim denials. A verification at the time of service means fewer denials, fewer provider disputes, and fewer member complaints.
Accumulator accuracy
When multiple claims are processed on the same day, real-time accumulators prevent over-application of deductibles. The first claim applies deductible, the second claim sees the updated balance. No batch-processing lag.
What real-time eligibility requires underneath
The key technical requirements:
- Low-latency data store: Member and plan data cached in Redis or similar in-memory store
- Atomic accumulator updates: Concurrent claim processing must update accumulators atomically to prevent race conditions
- 270/271 endpoint: Standards-compliant EDI interface for provider systems
- REST API: Modern API for portal and mobile integrations
- Audit trail: Every eligibility check logged for compliance
SmartTPA answers eligibility in real time with full accumulator tracking, 270/271 support, and REST API access, which turns eligibility from a daily headache into something nobody has to think about.
The question worth asking your current administrator is simple and the answer is revealing: how long after an enrollment change does a 270/271 response reflect it? Hours is a real-time system. Days is a batch architecture wearing a portal. If you want the rest of the plan examined with the same specificity, send us a claims file and we will reprice every line and give you the report either way.