S42.40 (Unspecified fracture of lower end of humerus) compared with T33 (Superficial frostbite), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Distinct conditions — both may be reported.
“frostbite (T33-T34)”
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. S42.40 carries an Excludes2 note covering T33: “frostbite (T33-T34)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
| S42.40Unspecified fracture of lower end of humerus | T33Superficial frostbite | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header Report instead: T33.011A, T33.011D, T33.011S, T33.012A, T33.012D |
| 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 | Unspecified fracture of lower end of humerus is a non-billable ICD-10-CM category code (S42.40). | Superficial frostbite is a non-billable ICD-10-CM category code (T33). |
| 7th character | The appropriate 7th character is to be added to all codes from category S42 | The appropriate 7th character is to be added to each code from category T33 |
| Includes | injuries of axilla injuries of scapular region Fracture of elbow NOS | frostbite with partial thickness skin loss |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources