There are 8 unique codex entries in the Lore section on Coruscant. 2 are accessible to all players regardless of class or faction, 4 are accessible to all Republic players regardless of class, and 2 are class specific.
Chancellor's Service Medal (Trooper) was obtained from speaking with General Garza during "The Battle of Corellia" mission. It is unobtainable.
Codex type: Lore | Faction: Republic | Class: Trooper
Associated Achievement: None
EV2 Macrobinoculars is obtained from speaking with Deena Riss during "The Shroud's Gambit" mission.
Codex type: Lore | Faction: Both | Class: All
Associated Achievement: None
History of Coruscant is obtained from interacting with a Clickable Holocron.
Codex type: Lore | Faction: Republic | Class: All
Associated Achievement: Loremaster of Coruscant
Reconstruction of Coruscant is obtained from interacting with a Clickable Plaque.
Codex type: Lore | Faction: Republic | Class: All
Associated Achievement: Loremaster of Coruscant
Republic Government is obtained from interacting with a Clickable Holocron.
Codex type: Lore | Faction: Republic | Class: All
Associated Achievement: Loremaster of Coruscant
Subterranean Seeker Droids is obtained from speaking with Master Cedral Gend during "Master Gend's Mission" mission.
Codex type: Lore | Faction: Both | Class: All
Associated Achievement: None
The Gauntlet Superweapon (Trooper) is obtained from speaking with General Garza during "Return to Duty" mission.
Codex type: Lore | Faction: Republic | Class: Trooper
Associated Achievement: None
The Sacking of Coruscant is obtained from speaking with Anitol Rosspar during "Crisis in Galactic City" mission.
Codex type: Lore | Faction: Republic | Class: All
Associated Achievement: Loremaster of Coruscant