[Answered ]-Reverse lazy error NoReverseMatch at django DeleteView

You can override the .get_success_url() method ^[Django-doc] to return the path to which we redirect:

from django.urls import reverse


class PatientAnalysisDeleteView(DeleteView):
    model = PatientAnalysis

    def get_success_url(self):
        return reverse(
            'journal:patient_analysis',
            kwargs={'hist_num_slug': self.object.patient_id},
        )