LIS | Laboratory Information System

A complete guide to Laboratory Information System (LIS) from how an it works, core capabilities to LIS vs LIMS differences and how to choose the right platform for your lab.

70%
of clinical decisions influenced by laboratory data
40%
reduction in transcription errors after LIS implementation

What is a LIS?

A Laboratory Information System is purpose-built healthcare software that manages the complete clinical laboratory workflow from electronic test ordering and barcode specimen tracking to analyzer integration, automated quality control, result reporting, and billing. A modern LIS system coordinates every touchpoint in the laboratory lifecycle while ensuring CLIA compliance, eliminating transcription errors, and enabling faster, more accurate clinical decisions.

At its core, a Laboratory Information System serves as the central nervous system of a modern clinical laboratory. It connects test ordering, sample tracking, analyzer interfaces, result reporting, and billing into a single, unified digital environment eliminating the data silos and manual handoffs that slow laboratories down and introduce errors.

Unlike general hospital information systems, an LIS is purpose-built for the unique regulatory, analytical, and patient safety requirements of the laboratory. It tracks, stores, and continuously updates clinical details about a patient across every visit, preserving that data for longitudinal reference and empowering smarter clinical decisions. When evaluating LIS, look for platforms that cover all six stages of the lab lifecycle described below.

Watch: Laboratory Information System Explained

A concise visual breakdown of how LIS software operates inside a modern clinical laboratory.


How does a LIS software work? A 6-Step Breakdown

From the moment a test is ordered to the delivery of actionable results, the LIS orchestrates every touchpoint in the clinical laboratory lifecycle. Here is what happens at each stage.

  1. Test Order Intake & Patient Registration

    The LIS receives test orders electronically from clinicians, physicians, or connected hospital information systems (HIS). Patient demographic and insurance data is captured and validated against existing records eliminating duplicates and reducing registration errors before any specimen is collected.

  2. Specimen Collection & Chain-of-Custody Tracking

    Labels with barcodes or QR identifiers are auto-generated the moment an order is placed. Throughout collection and transport, the LIS maintains an unbroken chain of custody recording who collected the sample, when, and where ensuring regulatory compliance and eliminating sample misidentification risk.

  3. Analyzer Integration & Automated Processing

    The LIS system interfaces bidirectionally with laboratory analyzers across hematology, chemistry, immunology, microbiology, toxicology, and other disciplines. Orders are automatically routed to the correct analyzer; results are received and processed in real time, eliminating manual data entry and dramatically accelerating turnaround times.

  4. Quality Control, Rules Engine & Validation

    Built-in decision-support rules based on Westgard principles and CLIA quality standards evaluate each result against configurable reference ranges, delta checks, and critical value thresholds. Anomalous results are automatically flagged for technologist review ensuring every reported value meets clinical quality standards before it reaches the ordering provider.

  5. Automated Result Reporting & EHR/HIS Transmission

    Validated results are transmitted automatically to the Electronic Health Record (EHR), HIS, practice management platform, or patient portal. Critical values trigger real-time alerts to ordering providers dramatically reducing the time between test completion and clinical action. This seamless integration is a core differentiator of a modern Laboratory Information System versus manual workflows.

  6. Billing, Compliance & Audit Trail

    The LIS automatically generates charge capture data tied to every performed test, reducing billing lag and improving reimbursement rates. A comprehensive, timestamped audit trail satisfies CAP, CLIA, HIPAA, and other regulatory requirements providing evidence-ready documentation for inspections and accreditation reviews.

LIS system workflow diagram showing 6 stages: test order intake, specimen collection and chain-of-custody, analyzer integration, quality control, automated result reporting to EHR, and billing compliance audit trail
Laboratory Information System workflow from order intake to billing compliance

LIS vs.LIMS: Key differences between laboratory information and management systems

LIS and LIMS are terms used interchangeably but were designed for fundamentally different environments. Here is how they compare side by side.

Dimension LIS Laboratory Information System LIMS Lab Information Management System
Primary Focus Patient-centric workflows; personal, demographic, and clinical health data associated with diagnostic testing Sample-centric workflows; tracking samples, batches, and quality data independent of a specific patient identity
Typical Setting Clinical and anatomic pathology laboratories, hospitals, physician offices, urgent care, reference labs Research labs, environmental labs, food & beverage testing, pharmaceutical, and industrial quality labs
Core Data Model Patient → Encounter → Order → Result → Report; longitudinal patient record maintained Sample → Test → Result; data organized by sample batch or project rather than patient record
Regulatory Compliance CLIA, CAP, HIPAA, HL7, IHE, FDA 21 CFR Part 11 (clinical focus) ISO 17025, GLP, GMP, FDA 21 CFR Part 11 (research/industrial focus)
EHR / HIS Integration Deep, bidirectional HL7/FHIR integration with EHR and HIS is a core requirement of any LIS system EHR integration is secondary; typically integrates with adjacent platforms or ERPs
Critical Value Alerting Essential real-time alerts to ordering providers for patient safety Not typically required; focus is on out-of-specification flagging for quality control
Billing & Reimbursement Integrated charge capture and CPT coding tied to ordered tests Generally not applicable; costs tracked through project or contract management
Today's Reality Modern platforms increasingly blur the boundary — offering configurable features that serve both patient-centric (LIS) and sample-centric (LIMS) workflows within a single unified system.
Bottom line: If your laboratory's primary mission involves diagnosing and treating patients, you need a dedicated LIS. If your work is primarily research, environmental, or industrial testing, a LIMS is the better fit. Many modern LIS software platforms now support both contact us to find the right match for your laboratory.

Core benefits of a modern LIS system

A powerful Laboratory Information System is not just a data repository it is a strategic clinical asset that directly impacts patient safety, laboratory efficiency, and organizational profitability.

Benefit 01

Meet Quality Control Standards Consistently

Modern LIS software embeds Westgard rules, delta checking, and inter-laboratory comparison protocols directly into the result workflow. Every data point is automatically evaluated before reaching the reporting stage ensuring your lab meets CAP, CLIA, and accreditation body requirements without manual intervention, and producing an audit-ready quality record at all times.

Benefit 03

Streamline & Accelerate Laboratory Workflows

Configurable workflow automation allows your LIS software to route orders intelligently, prioritize STAT specimens, manage reflexive testing protocols, and alert staff to bottlenecks in real time. The result: higher volumes processed with the same or fewer staff without sacrificing accuracy or compliance.

Benefit 04

Elevate Patient Care & Clinical Outcomes

When test results are accurate, faster, and paired with intelligent clinical decision support, providers diagnose sooner and treat more effectively. A patient-centric Laboratory Information System bridges the gap between the lab and the bedside empowering clinicians with the right data at the right moment to improve outcomes across hematology, microbiology, chemistry, immunology, and beyond.

Key capabilities of a leading LIS

The best LIS deliver a comprehensive suite of integrated capabilities designed to serve every operational and clinical need of the modern laboratory.

Automated Order & Result Management

Receive, route, and process test orders from any connected system. Deliver validated results to EHR, HIS, and patient portals automatically with zero manual steps.

Specimen Tracking & Chain of Custody

Barcode-driven tracking monitors every specimen from collection to disposal ensuring regulatory compliance and eliminating sample misidentification across all LIS.

Analyzer Instrument Integration

Bidirectional interfaces with hundreds of analyzer models across all disciplines enable real-time data transfer, eliminating manual transcription entirely from your LIS workflow.

Quality Control & Validation Rules

Configurable Westgard rules, delta checks, and reference range logic automatically validate every result before reporting ensuring clinical accuracy at scale.

Advanced Analytics & Data Mining

Built-in dashboards, trend analysis, and population health analytics transform raw lab data into actionable clinical and operational intelligence for laboratory leadership.

Interoperability & HL7/FHIR Compliance

Seamless exchange with EHR, HIS, billing, HIE, and reference laboratory systems via HL7 v2, FHIR R4, and proprietary interfaces a non-negotiable for any modern LIS integration.

Compliance & Regulatory Reporting

Automated generation of CLIA, CAP, and public health reporting data with fully timestamped audit trails keeps your laboratory inspection-ready at all times.

Real-Time Critical Value Alerting

Instant, configurable alerts notify ordering providers the moment a critical value is verified closing the loop between laboratory findings and bedside clinical action.

Patient-Centric Outreach & Portal Access

Enable direct-to-patient result delivery, appointment scheduling, and longitudinal test history access through integrated patient portal functionality.


Why do laboratories need a dedicated laboratory systems?

In today's regulatory and data-intensive healthcare environment, a generic software solution cannot meet the complexity demands of clinical laboratory operations. Here is why a purpose-built LIS is non-negotiable.

Support Laboratory Workflow Efficiency

Modern healthcare laboratories process thousands of specimens daily across dozens of test types. A dedicated LIS solution manages order intake, specimen tracking, and analyzer integration see our complete guide to LIS workflow automation to learn how modern platforms optimize each step.

Ensure Consistent Procedure Execution

Variability in laboratory procedure is a direct patient safety risk. A robust LIS enforces standardized protocols across all staff and shifts increasing productivity, reducing human error, and supporting the timely, accurate clinical decision-making that providers depend on.

Automate Billing & Maximize Reimbursement

Complex laboratory billing demands precision. A fully integrated LIS captures charge data at test completion, auto-populates CPT codes, checks for missing information, and submits clean claims dramatically reducing denials, accelerating revenue cycles, and freeing billing staff from repetitive manual tasks.

Who uses a laboratory information system?

LIS software serve a broad spectrum of clinical and diagnostic environments where patient-centric laboratory data must be managed with precision, speed, and regulatory compliance.

Hospital Laboratories

Core & reference lab consolidation with 24/7 critical value alerting and deep EHR integration

Physician Office Labs

Point-of-care result management and streamlined billing in ambulatory settings

Independent Reference Labs

High-volume, multi-site specimen tracking with client portal result delivery

Anatomic Pathology Labs

Tissue specimen management, case workflow, and pathologist sign-out support

Microbiology & Virology

Culture workflow management, antibiogram reporting, and infection control analytics

Public Health Laboratories

Communicable disease surveillance, outbreak analytics, and mandatory state reporting

Toxicology Clinics

Chain-of-custody tracking, drug screening workflow, and MRO result management

Academic & Teaching Hospitals

Research-integrated clinical data capture supporting dual clinical and discovery missions


LIS selection checklist: How to evaluate vendors

Choosing the right LIS software is one of the most consequential decisions your laboratory will make. Use this checklist when evaluating Laboratory Information System vendors:

Core LIS functionality

Must-Have Features

Deployment & Architecture

Integration & Interoperability

Support & Implementation

Cost Transparency

FAQs about LIS

Why choose Prolis LIS?

Modern laboratories require intelligent technology to keep pace with the growing demand for accurate, timely, and data-driven diagnostics. Prolis LIS software is a powerful, scalable Laboratory Information System designed to streamline laboratory workflows, improve data management, and support clinical, pathology, microbiology, and public health operations. Whether deployed on-premises or in the cloud, Prolis offers a flexible and customizable platform that enhances productivity, reduces manual errors, and empowers laboratories to deliver faster, more reliable results.