skills/iso-standards-readiness/references/iso-15189.md
Research basis: 2026-07-26. This reference summarizes a preparation process and evidence architecture for medical laboratory quality and competence work. It does not reproduce requirements and is not a substitute for the standard.
ISO publications are copyrighted. Obtain ISO 15189 from ISO, an ISO national member, or another authorized source; see ISO copyright. Do not ask an agent to retrieve, transcribe, summarize clause-by-clause, or store proprietary text. Accreditation-body and CAP checklists that quote requirements are separately licensed material — do not paste them into shared repositories or prompts.
An accreditation body grants accreditation for a defined scope of examinations, per laboratory and per location, under ISO/IEC 17011. A medical laboratory is accredited, not "ISO 15189 certified." Since 2026-01-01 the recognition arrangement sits with Global Accreditation Cooperation Incorporated; verify current claim and logo wording with the accreditation body.
CLIA certification by CMS is mandatory before a US laboratory may accept human specimens for testing. It is federal law, not a voluntary quality scheme.
ISO 15189 accreditation does not satisfy CLIA and cannot replace a CLIA-based accreditation. Deemed status flows only from a CMS-approved accreditation organization's program. CMS approves a limited set of accreditation organizations whose standards must meet or exceed CLIA requirements, with reapproval every six years or more often; read the current AO list rather than relying on a remembered count. The CAP 15189 program is layered on top of CAP Laboratory Accreditation Program accreditation rather than offered as a standalone substitute — confirm current prerequisites with CAP.
Never let an ISO 15189 readiness output be read as CLIA compliance, deemed status, licensure, or an inspection result.
State licensure, national health-authority requirements, and payer conditions of participation are separate again, with their own inspection processes and their own records. Non-US jurisdictions may make ISO 15189 accreditation mandatory, voluntary, or irrelevant. This is an applicability decision for authorized humans.
The performance of an in vitro diagnostic device, and any laboratory-developed test
regime that applies to it, is regulated separately from laboratory accreditation. EU
IVDR conformity assessment, notified-body involvement, and performance-study
requirements are not laboratory accreditation questions. See references/iso-13485.md
and the EU entries in references/source-ledger.md.
This skill and its files cannot:
Use outputs as a list of evidence questions for accountable human review.
Each scope item is defined by discipline, the examination or measurand reported, the controlled procedure and its issue, and the primary sample type with its acceptance requirements. Point-of-care testing performed under the laboratory's responsibility belongs in the scope discussion explicitly, including devices operated by clinical staff outside the laboratory.
PYTHONDONTWRITEBYTECODE=1 python3 scripts/validate_scope_intake.py \
/path/to/medical-laboratory-scope-intake.json --standard iso-15189
Copy assets/templates/medical-laboratory-scope-intake-template.json outside the skill
first. The distributed template fails closed by design.
The iso-15189 profile carries these domain labels for manifests and gap reports.
They are workflow topics, not clause references:
scope-and-impartiality, organizational-structure-and-governance,
personnel-competence, facilities-and-safety, equipment-and-calibration,
metrological-traceability, reagents-and-consumables,
externally-provided-products-and-services, pre-examination-processes,
examination-methods-verification-and-validation, measurement-uncertainty,
validity-of-results-and-external-quality-assessment, point-of-care-testing,
post-examination-and-reporting, laboratory-information-management, complaints,
nonconformity-and-corrective-action, risk-management-and-improvement,
internal-audit, management-review, continuity-and-emergency-preparedness.
Each domain needs an owner, status, evidence IDs, source/version reference, recorded approval, and links to open gaps. Sample records, not only procedures.
Most avoidable patient harm originates before the analyser: request content and patient identification, collection and identification of the primary sample, transport and stability conditions, acceptance and rejection criteria, and handling of compromised samples. Sample: rejection records, identification-error events, transport excursions, and the resulting investigations — not only the collection manual.
Assemble evidence for result review and authorization, reference intervals and clinical decision limits with their basis, interpretive comments and who is authorized to make them, report content and amendment or retraction handling, and — the item most often thin — critical-result notification with documented read-back and timeliness. Turnaround-time monitoring belongs here too.
POCT requirements now sit within ISO 15189. Record governance of devices outside the laboratory, operator training and authorization, connectivity and result capture into the patient record, quality-control regimes, and reconciliation with central laboratory methods.
Most medical laboratories verify commercial IVD examinations for their own setting rather than validating a new method. Record which performance characteristics were verified against the manufacturer's claims, the acceptance criteria, the data, and the authorized approval to report patient results. Laboratory-developed and modified procedures need the fuller validation evidence and the applicable regulatory analysis.
Record EQA enrolment per scope item, results, evaluation against criteria, and investigation of unsatisfactory performance. Where no EQA scheme exists for an examination, record the alternative comparison approach and its authorization. An unacceptable EQA outcome with no documented investigation is a blocker.
For measurands where higher-order reference materials and reference measurement procedures exist, record the traceability of assigned values and the resulting commutability and comparability limitations. Where no reference system exists, record that fact and what the laboratory does about result comparability.
The 2022 edition treats risk to patients as a running requirement rather than an annex. Record identified risks, controls, residual acceptance with authority, and improvement actions. Continuity and emergency preparedness — instrument failure, LIS outage, reagent supply interruption, facility loss — needs tested arrangements, not a plan nobody has exercised.
scripts/audit_document_records.py — controlled documents, records, retention basis,
and external-source currency. Standard-agnostic.scripts/check_capa.py — nonconformity and corrective action with effectiveness
evidence before closure.scripts/check_supplier_controls.py — reagents, consumables, calibration providers,
and referral laboratories, including the referral laboratory's own accreditation or
licensure status.scripts/validate_evidence_manifest.py and scripts/gap_analyzer.py with
--standard iso-15189.scripts/check_traceability.py and scripts/check_qmsr_transition.py are
device-lifecycle checks and do not apply here.
references/source-ledger.md — dated baseline and provenance limitationsreferences/assurance-lanes.md — how accreditation, certification, and regulatory
inspection differ