This document presents a comprehensive narrative of applying the LINDDUN privacy threat modeling methodology to a Healthcare Information System (HIS). It covers system modeling with Data Flow Diagrams (DFDs), iterative threat identification across seven LINDDUN categories, and threat mapping to Common Weakness Enumeration (CWE) standards. All key formulas are explicitly shown, and the primary mapping matrix (Table 1) is included. For deeper scenarios, refer to the accompanying files: LINDDUN_Threat Trees (detailing use and misuse-case trees) and UseMisuse Cases vs CWE Category (mapping scenarios to CWE categories).