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SOP (Source of Payment Typology) - Synopsis

Search SOP in the UMLS Metathesaurus
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The National Association of Health Data Organizations (NAHDO) distributes and maintains the Source of Payment Typology.

The Source of Payment Typology is a standardized Payer Type classification system. It allows for data comparison by payer type across states, various provider types, and to national benchmarks.

The Source of Payment Typology includes broad hierarchial categories with more specific subcategories.

The audience for Source of Payment Typology includes researchers, public health advocates, and healthcare analysts.

Update Frequency
Annual updates occur in October.

Metathesaurus Update Frequency
SOP is updated in the Metathesaurus as resources permit.

Sites Consulted

  1. Public Health Data Standards Consortium [Internet]. Baltimore (MD): Public Health Data Standards Consortium; c2013. Source of Payment Typology; [cited 2013 July 31]. Available from:; Users Guide for Source of Payment Typology: