S89.91XA (Unspecified injury of right lower leg, initial encounter) compared with T32 (Corrosions classified according to extent of body surface involved), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Distinct conditions — both may be reported.
“burns and corrosions (T20-T32)”
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. S89.91XA carries an Excludes2 note covering T32: “burns and corrosions (T20-T32)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
| S89.91XAUnspecified injury of right lower leg, initial encounter | T32Corrosions classified according to extent of body surface involved | |
|---|---|---|
| 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 | Unspecified injury of right lower leg, initial encounter is a billable ICD-10-CM diagnosis code (S89.91A). | Corrosions classified according to extent of body surface involved is a non-billable ICD-10-CM category code (T32). |
| 7th character | The appropriate 7th character is to be added to each code in subcategory S89.9 | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources