Background: Documentation of drug related problems (DRPs) and pharmaceutical interventions (PIs) is essential for an objective evaluation of the pharmacist's contribution to pharmacotherapy. However, in Belgium, a nationally used classification system is not available, prohibiting structured and uniform documentation of DRPs and PIs.
Aim: To develop and validate a national classification system for in-hospital clinical pharmacy activities, based on literature and field experience, specifically intended for routine registration.
Method: Based on a literature review, a survey among Belgian hospital pharmacists and a stakeholder focus group, a first version of Be-CLIPSS (Belgian CLInical Pharmacy claSsification System) was developed. Inter-rater reliability of the DRPs and PIs was assessed. Additionally, its usability was reviewed. The system was further refined, followed by a second validation.
Results: Both the survey and focus group discussion revealed little use of validated DRP and PI classification systems in Belgium, although these were considered highly desirable if practical and minimally time-consuming. The final classification system encompassed seven clinical pharmacy activities, grouped into four activity classes. The inter-rater reliability for the second activity class was substantial for the DRPs (κ = 0.737) and almost perfect for the PIs (κ = 0.872). The interpretability (86.4%), user-friendliness (61.4%), user satisfaction (84.1%), interest for use in daily practice (68.2%) and difficulty in correctly classifying the DRP and PI (31.8%) were assessed.
Conclusion: Be-CLIPSS, a newly developed and partially validated classification system for DRPs and PIs, was found to be user-friendly, with a good interpretability and user satisfaction, resulting in a high interest for use in daily practice.
Keywords: Classification system; Clinical pharmacy; Drug related problem; Pharmaceutical intervention.
© 2023. The Author(s), under exclusive licence to Springer Nature Switzerland AG.