1. Agency for Healthcare Research and Quality. (2020). HCUP Clinical Classifications Software (CCS) for Services and Procedures v2020.1. Healthcare cost and utilization project (HCUP). Retrieved November 10 from www.hcup-us.ahrq.gov/toolssoftware/ccs_svcsproc/ccssvcproc.jsp.
2. Agency for Healthcare Research and Quality. (2021a). HCUP Clinical Classifications Software Refined (CCSR) for ICD-10-CM diagnoses v2021.2. Healthcare cost and utilization project (HCUP). Retrieved April 4 from www.hcup-us.ahrq.gov/toolssoftware/ccsr/dxccsr.jsp.
3. Agency for Healthcare Research and Quality. (2021b). HCUP Procedure Classes Refined for ICD-10-PCS v2021. Healthcare cost and utilization project (HCUP). Retrieved April 2 from www.hcup-us.ahrq.gov/toolssoftware/procedureicd10/procedure_icd10.jsp.
4. Arons A. DeSilvey S. Fichtenberg C. Gottlieb L. (2018). Compendium of medical terminology codes for social risk factors. Social Interventions Research and Evaluation Network. https://sirenetwork.ucsf.edu/sites/default/files/Compendium%2520Social%2520Risk%2520Factors%2520Codes%25206.20.18.xlsx
5. Validation of an Electronic Health Record–Based Suicide Risk Prediction Modeling Approach Across Multiple Health Care Systems