ISO 15189 Certification: Accreditation for Medical Laboratories

Medical laboratories sit at the foundation of clinical diagnosis and treatment. From the moment a sample is taken to the moment a result is reported, every step shapes a clinical decision. ISO 15189:2012 is the international standard that structures the quality management system and the technical competence of medical laboratories, setting out what accredited testing should look like.

Sistem Patent Kalite supports medical laboratories that want to build, document, and sustain an ISO 15189 quality system. This page explains what the standard requires, who it applies to, and how we work alongside laboratory teams during the accreditation project.

What ISO 15189:2012 Sets Out

ISO 15189:2012 defines the quality and competence requirements for medical laboratories. It covers both the management side (documentation, staff training, document control, internal audits, management review, corrective action) and the technical side (sampling, calibration, measurement uncertainty, reporting, equipment control, reagent control). The standard draws on the structure of ISO 9001 and the technical discipline of ISO/IEC 17025, adapted to the clinical context where patient safety is the priority.

What Accreditation Requires Inside the Laboratory

The accreditation project touches every part of the laboratory. Typical elements our clients address:

• Defined quality management system: a written system describing how the laboratory runs, reviews, and improves its work, scaled to the laboratory size and scope.
• Standardised test processes: procedures that meet the ISO 15189:2012 requirements for preanalytical, analytical, and postanalytical stages.
• Staff competence: documented training, authorisation, and ongoing evaluation of the technicians, biologists, and clinicians who run the tests.
• Quality control and calibration: internal QC, external proficiency testing, and an equipment calibration programme that keeps results traceable.

Core Elements of the ISO 15189 Framework

The standard itself builds around a few pillars that every accredited laboratory must evidence:

• Sampling processes: standardised sample collection, handling, and rejection criteria.
• Test methods: validated methods with defined performance characteristics and measurement uncertainty.
• Result reporting: accurate, complete, and timely reports that reach the clinician with the right reference ranges and interpretive comments.
• Documentation and records: procedures, forms, and records held under document control for the retention period the standard requires.

How Sistem Patent Kalite Supports the Project

ISO 15189 accreditation is demanding because it asks a laboratory to evidence both management discipline and technical performance. Our team scopes the gap against the current version of the standard, plans the documentation build, runs the internal audit cycle, and prepares the laboratory for the on-site assessment. We work alongside the quality manager and the technical manager so that the system is usable after accreditation, not just ready for the audit week.

Why Laboratories Choose Us

• Experience: Sistem Patent Kalite has supported medical laboratory quality projects across a range of sizes and specialties since 1999.
• Specialist knowledge: our team works with the ISO 15189:2012 requirements on a regular basis and follows the revision cycles closely.
• Client focus: we adapt the documentation and implementation plan to how each laboratory actually operates, rather than applying a template.
• Reasonable pricing: the project is scoped up front so the laboratory knows what is included before the work starts.

An ISO 15189:2012 accreditation signals to referring clinicians, hospitals, insurance partners, and patients that the laboratory runs its testing under a recognised quality and competence framework. To discuss a new accreditation project or a transition from an existing quality system, contact Sistem Patent Kalite for a scoped proposal.