Patient Problem Ranking contains a summary of reported health technologies included in the guaranteed services package but to which access is currently, to a lesser or greater extent, limited. The higher the score, the more unfair the restriction of access, i.a. the more burdensome it is for patients and the society as a whole. The register kept by the WHC Foundation is based on opinions of professionals involved in health technology assessment and experts from different medical fields, who rank individual notifications by strictly defined criteria.

The Ranking includes medical procedures from 44 medical fields. Availability of these services is monitored in the WHC Ranking on a permanent basis at least once a year and in the case of services also included in the Barometer and OncoBarometer – three times a year. The results are presented from the perspective of the patient and are based on the waiting period for a given service and its price. The average waiting periods will be determined on a random sample of at least 6 public health care providers from the whole Poland for each service included in the Ranking. The average cost (monthly in the case of e.g. a long-term therapy or treatment, or one-time for a given service, such as surgery, a visit to a specialist, a test, etc.) to the patient who wishes to receive the service performed privately, and the time within which this service will be provided were established for all the problems.

When data on waiting periods and prices are collected, the card is sent for consultation to experts who give ranking points in the following categories: impact on public health and personal health, the effectiveness and cost-effectiveness of the intervention in comparison to an alternative intervention, the degree of limitation in access and the uncertainty of estimates. The assigned values obtained via the ranking formula indicate the final score. These values are the measure of injustice of limiting access to services. The higher the score, the more severe this limitation is for patients and the society as a whole.