S03.40XA vs T18.0
S03.40XA (Sprain of jaw, unspecified side, initial encounter) compared with T18.0 (Foreign body in mouth), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. S03.40XA carries an Excludes2 note covering T18.0: “effects of foreign body in mouth NOS (T18.0)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| S03.40XASprain of jaw, unspecified side, initial encounter | T18.0Foreign body in mouth | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Sprain of jaw, unspecified side, initial encounter is a billable ICD-10-CM diagnosis code (S03.40A). | Foreign body in mouth is a non-billable ICD-10-CM category code (T18.0). |
| 7th character | The appropriate 7th character is to be added to each code from category S03 | The appropriate 7th character is to be added to each code from category T18 |
| Includes | avulsion of joint (capsule) or ligament of head laceration of cartilage, joint (capsule) or ligament of head sprain of cartilage, joint (capsule) or ligament of head traumatic hemarthrosis of joint or ligament of head | — |
| Use additional code | — | code, if known, for foreign body entering into or through a natural orifice (W44.-) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources