Objective: Rehabilitation is one of 4 main health strategies. The World Report on Disability identifies deficits in rehabilitation care for people with disabilities as an important barrier to full inclusion in society or to achieve optimal functioning. In order to overcome such deficits, to close gaps in national and/or regional rehabilitation systems, and to develop appropriate rehabilitation services, it is crucial to define uniform criteria and a widely accepted language to describe and classify rehabilitation services. The aim of this paper was therefore to develop a list of dimensions and categories to describe the organization of health-related rehabilitation services. Methods: The classification is based on a series of expert workshops including members of the International and European Society of Physical Medicine and Rehabilitation. Results: The proposed classification has 2 levels (dimensions and categories). The upper level distinguishes 3 dimensions: the service provider (with 9 categories), the funding of the service (with 3 categories), and the service delivery (8 subcategories). A further specification of the categories in a 3-level classification (including value sets) is needed. Conclusion: This paper is an intermediate step towards development of a classification system with distinct categories and dimensions.