to Dutch homepage

WHO-FIC network

Family of classifications

ICF: Classification of functioning, disability and health

ICF-CY: ICF for Children and Youth

ICD-10: Classification of diseases

ICD-O-3: Classification of diseases for oncology

ICPC-2: Classification of primary care

ICECI: Classification of external causes of injury

ISO9999: Classification of assistive products for persons with disabilities

ATC/DDD: Classification of therapeutic drugs

ICHI: Classification of health interventions

Health terminology

Frequently asked questions

to English homepage








Assistive products for persons with disability - Classification and terminology - ISO 9999, fifth edition, 2011.

This International Standard establishes a classification of assistive products, especially produced or generally available, for persons with disability. The classification consists of three hierarchical levels and each of the codes consist of three pairs of digits. Like other classifications codes, titles, explanatory notes, inclusions, exclusions and cross-references are given for each level of the classification.

Inclusions and exclusions:
Assistive products used by a person with disability, but which require the assistance of another person for their operation, are included in the classification.
The following items are specifically excluded: items used for the installation of assistive products; solutions obtained by combinations of assistive products that are individually classified in ISO 9999:2011; medicines; assistive products and instruments used exclusively by healthcare professionals; non-technical solutions, such as personal assistance, guide dogs or lip-reading; implanted devices; and financial support.

IIn 2003, ISO 9999, of the International Organization for Standardization, was accepted as a related member of the World Health Organization Family of International Classifications (WHO-FIC). The WHO-FIC is comprised of international classifications for relevant sectors of the health system. ISO 9999 makes use of the terminology and definitions of the ICF.

Proposals for changes or additions to this International Standard, both in respect of existing and proposed new classes/subclasses/divisions, which take into account the given rules for classification, may be submitted to a national member body of ISO with an accompanying explanation for the proposal.

The fifth edition of ISO 9999 is available in English and French and can be ordered from the national ISO member bodies: For the Dutch version of the fourth editon, click here.

update August 2011

Click here for the English ISO 9999


Chapters in ISO 9999, 2011


There is a separate working document on the relationship between ISO 9999 2007 and ICF; a working document for the fifth edition is in preparation



Earlier published presentations:

Brisbane 91(2002): Classification of technical aids for persons with disabilities, Marijke W. de Kleijn-de Vrankrijker

Cologne 33 (2003): ISO 9999 submission to the WHO-FIC, Marijke W. de Kleijn - de Vrankrijker

Cologne 41(2003): The use of the ICF and ISO 9999, Theo Bougie



ISO 9999