The 2023 methodology report from Mathematica outlines updated procedures for identifying Medicaid Long-Term Services and Supports (LTSS) users and expenditures, providing a crucial framework for analyzing T-MSIS data. This guide serves as an essential resource for distinguishing between institutional and home-based services while incorporating data quality measures to ensure accurate reporting. For the full technical document, visit the Medicaid.gov website . Analysis of Data Quality in the Transformed - Medicaid