Final answer:
The correct device character for PCS code 0SR9019 with a device stated as "Synthetic Substitute" is '1', representing a synthetic material as a device in the ICD-10-PCS coding system.
Step-by-step explanation:
The PCS code 0SR9019 refers to Medical and Surgical section, the Respiratory System body system, Replacement as the root operation, Right lung as the body part, Synthetic Substitute as the device, and Open approach.
If the device is simply stated as "Synthetic Substitute" in the coding table, the correct device character for PCS code 0SR9019 is 1. According to the ICD-10-PCS, the device character that represents a synthetic substitute is '1', which corresponds to synthetic materials used to functionally replace a part of a body system or structure.