S02.109K (Fracture of base of skull, unspecified side, subsequent encounter for fracture with nonunion) compared with S02.84 (Fracture of lateral orbital wall), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Distinct conditions — both may be reported.
“lateral orbital wall (S02.84-)”
An Excludes2 note means the excluded condition is not part of the code above it, but a patient can have both. Report both when both are documented.
Source: CMS ICD-10-CM tabular instructional notes
Yes, when both are documented. S02.109K carries an Excludes2 note covering S02.84: “lateral orbital wall (S02.84-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
| S02.109KFracture of base of skull, unspecified side, subsequent encounter for fracture with nonunion | S02.84Fracture of lateral orbital wall | |
|---|---|---|
| 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 | Fracture of base of skull, unspecified side, subsequent encounter for fracture with nonunion is a billable ICD-10-CM diagnosis code (S02.109K). | Fracture of lateral orbital wall is a non-billable ICD-10-CM category code (S02.84). |
| 7th character | The appropriate 7th character is to be added to each code from category S02 | The appropriate 7th character is to be added to each code from category S02 |
| Includes | injuries of ear injuries of eye injuries of face [any part] injuries of gum | injuries of ear injuries of eye injuries of face [any part] injuries of gum |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources