Hi LK! S00.502A stands for: Unspecified superficial injury of oral cavity, initial encounter S03.2XXA stands for: Dislocation of tooth, initial encounter Y04.2XXA stands for: Assault by strike against or bumped into by another person, initial encounter Based on what you described below, S00.502A & S03.2XXA sound like they may be good codes for this situation. However, instead of Y04.2XXA, you may consider: Y04.0XXA – Assault by unarmed brawl or fight, initial encounter Y04.8XXA – Assault by other bodily force, initial encounter ***if other means other than bodily force were used (i.e. blunt object, sharp object, weapon, etc – let me know and I can offer you some additional coding options) You may also consider the following to describe the injury: K08.411 – Partial loss of teeth due to trauma, class I K08.412 – Partial loss of teeth due to trauma, class II K08.413 – Partial loss of teeth due to trauma, class III K08.414 – Partial loss of teeth due to trauma, class IV K08.419 – Partial loss of teeth due to trauma, unspecified class K03.81 – Cracked tooth S02.5XXA – Fracture of tooth (traumatic), initial encounter for closed fracture S02.5XXB – Fracture of tooth (traumatic), initial encounter for open fracture Hope this helps!