NCCI Chapter 10: Pathology and Laboratory Policies
NCCI policies for clinical laboratory services, including panel-vs-component coding, automated multi-channel chemistry rules, and Date of Service rules for lab tests.
Primary source
NCCI Policy Manual Chapter 10 (Pathology and Laboratory) — CMS.gov →https://www.cms.gov/medicare/coding-billing/national-correct-coding-initiative-ncci-edits/medicare-ncci-policy-manual
Verified May 23, 2026 · This is the authoritative regulator URL. The summary below is a research aid; the linked source controls.
NCCI Chapter 10 addresses clinical laboratory coding policy. Key concepts:
Panel coding: when a defined panel exists (e.g., 80048 Basic Metabolic Panel, 80053 Comprehensive Metabolic Panel), and the practice performs all components of the panel, the panel must be reported rather than the components individually. Reporting components when a panel exists is incorrect coding and a frequent NCCI PTP edit basis.
Automated multi-channel chemistry: rules govern how to report panels when fewer than all components are performed, and how to handle add-on individual tests in conjunction with panels.
Date of Service rules: CMS established specific Date of Service (DOS) policies for tests ordered after a hospital outpatient encounter or after a beneficiary's death — the DOS for the laboratory service is typically the date the test was performed, not the date of collection.
Bundling with surgical procedures: lab tests performed as part of a surgical or invasive procedure are typically included in the procedure code; separate billing is appropriate only when the lab service is medically necessary independently of the procedure.
The 14-Day Rule for Hospital Outpatient Labs and the Molecular Pathology DOS exceptions remain frequent points of payer denial; understanding the current Chapter 10 policy for the practice's high-volume lab work is operationally important.
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Last reviewed May 23, 2026 · Citation verified May 23, 2026
Research aid, not legal advice. This summary is an administrative research aid prepared by D3rx. It does not certify compliance, provide legal advice, replace counsel, or guarantee an audit outcome. For authoritative regulatory text follow the primary source link at the top of this page. The practice remains responsible for reviewing, adopting, and maintaining its compliance program.