MAC LCD Article
A Local Coverage Article published by a MAC to provide billing, coding, or coverage clarification that does not rise to the formal LCD.
1 min read · Last reviewed May 23, 2026
At a glance
- Category
- Payer
- Primary sources
- 2
- Workspace handoff
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Where this comes up
Front-office and billing both hit this term — eligibility before the visit, prior auth before the procedure, contract terms during fee-schedule negotiation, and credentialing whenever a new provider joins or a payer roster lapses. Misses here become denials downstream.
Full definition
What it is in practice
CMS Medicare Coverage Database lists LCDs and articles. Articles often carry billing examples and ICD-10 lists that drive day-to-day claim editing.
How it shows up in your practice
Subscribe to your MAC's article feed. Articles often appear before the LCD update and signal upcoming coverage changes.
Sources
- CMS — Local Coverage Determinationshttps://www.cms.gov/medicare-coverage-database/
- CMS — Medicare Administrative Contractorshttps://www.cms.gov/medicare/coding-billing/medicare-administrative-contractors-macs
Look up MAC articles in Ask D3
Open ask d3 →Related terms
- PayerLCD (Local Coverage Determination)A MAC-published decision about whether a service is reasonable and necessary in its jurisdiction.
- PayerMedicare Administrative Contractor (MAC)CMS-contracted regional entity that processes Medicare claims, makes coverage decisions, conducts provider education, and handles first-level appeals.
- CodingMedical NecessityThe standard requiring that services be reasonable and necessary for the diagnosis or treatment of illness or injury or to improve the functioning of a malformed body member.
D3rx is a healthcare-billing and compliance research aid maintained by D3rx Inc. Articles are drafted by an LLM (Anthropic Claude) against primary HHS, OCR, CMS, eCFR, NIST, and state-regulator publications, and reviewed for restraint and source fidelity by the D3rx team.
Reviewer status: a named credentialed reviewer (CHC, CHPC, or healthcare attorney) is being engaged. Until that engagement is finalized, this page does not claim credentialed review.
Related across the archive
- GlossaryLCD (Local Coverage Determination)A MAC-published decision about whether a service is reasonable and necessary in its jurisdiction.
- GlossaryMedicare Administrative Contractor (MAC)CMS-contracted regional entity that processes Medicare claims, makes coverage decisions, conducts provider education, and handles first-level appeals.
- GlossaryMedical NecessityThe standard requiring that services be reasonable and necessary for the diagnosis or treatment of illness or injury or to improve the functioning of a malformed body member.
- GlossaryCHIP (Children's Health Insurance Program)State-administered federal program providing health coverage to children in families with incomes too high for Medicaid but too low for private coverage.
- GlossaryFPL (Federal Poverty Level)Annual income thresholds published by HHS used to determine eligibility for federal programs.
- GlossaryMedicaidJoint federal-state program providing health coverage to certain low-income individuals, families, pregnant women, elderly, and people with disabilities.
- ComplianceSMRC Audit Response: The Supplemental Medical Review Contractor WindowAn SMRC letter gives a 45-day documentation window and is shorter-fuse than RAC. Here is the response procedure and how the findings feed back to CMS and the MACs.
- RegulationMLN: Medical Necessity — Local Coverage Determinations (LCDs) and National Coverage Determinations (NCDs)Reference to Medicare's coverage determinations: NCDs are issued by CMS; LCDs are issued by MACs; both define when an item or service is reasonable and necessary.
This glossary entry is a research aid for billing and compliance staff. It does not provide legal, medical, or financial advice and does not replace counsel. References cited link to primary sources at HHS, OCR, CMS, eCFR, NIST, and the relevant payer or industry body.