Laboratory Billing Services
Laboratory billing depends heavily on payer-specific medical necessity policies (LCDs/NCDs) and correct panel-vs-individual test coding. Flint RCM's laboratory accounts are staffed by coders fluent in these payer-specific rules.
Specialty-specific pitfalls we watch for.
- Individual test codes billed when a bundled panel code applies, triggering bundling denials
- Medical necessity denials when an ICD-10 code isn't on a payer's Local Coverage Determination (LCD) for the test ordered
- Reference lab vs. performing lab billing split incorrectly, causing duplicate or missing charges
- ABN (Advance Beneficiary Notice) documentation missing for tests that may not meet Medicare medical necessity
- Reflex testing billed without documentation showing the reflex criteria were met
- Panel vs. individual test coding checked before submission to prevent bundling denials
- Ordering diagnosis codes checked against payer LCD/NCD coverage policy before the test is run
- Reference lab billing split verified to prevent duplicate billing between ordering and performing labs
- ABN documentation confirmed for tests with uncertain Medicare medical necessity
What makes Laboratory Billing coding different.
- CPT 80047–80081 (organ/disease panels) used instead of individually billing component tests where a panel code applies
- ICD-10 diagnosis codes matched against payer LCD coverage criteria for the specific test ordered
- Modifier -90 (reference lab) or -91 (repeat test) applied where the billing arrangement requires it
What to confirm before the visit.
- LCD/NCD coverage confirmed for the ordered test against the patient's diagnosis before the test is run
- ABN obtained and documented when medical necessity coverage is uncertain under Medicare policy
Medical necessity denials tied to LCD mismatches are the leading cause of lab claim denials — AR follow-up checks the specific LCD policy and appeals with supporting diagnosis documentation where applicable.
Our workflow for laboratory billing billing.
Order Review
Test orders and diagnosis codes are reviewed against payer coverage policy before the test is billed.
Coding & Panel Check
Panel vs. individual test coding is verified to prevent bundling denials.
Medical Necessity Verification
LCD/NCD coverage is confirmed and ABN obtained where necessity is uncertain.
AR Follow-Up
Medical necessity denials are worked against the specific payer LCD policy.
What shapes laboratory billing reimbursement.
Each Medicare Administrative Contractor (MAC) publishes its own LCDs, so the same test can have different covered diagnoses depending on jurisdiction — coverage is checked against the applicable MAC's policy.
Laboratory Billing billing, answered.
How do you prevent medical necessity denials?
Ordering diagnoses are checked against the applicable payer's LCD/NCD coverage policy before the test is billed.
Do you bill for reference lab arrangements?
Yes — reference lab billing splits are verified to avoid duplicate billing between the ordering and performing lab.
Explore more specialty billing pages.
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