S99.002K (Unspecified physeal fracture of left calcaneus, subsequent encounter for fracture with nonunion) compared with T20 (Burn and corrosion of head, face, and neck), 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. S99.002K carries an Excludes2 note covering T20: “burns and corrosions (T20-T32)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
| S99.002KUnspecified physeal fracture of left calcaneus, subsequent encounter for fracture with nonunion | T20Burn and corrosion of head, face, and neck | |
|---|---|---|
| Billing status | Billable | Non-billable header Report instead: T20.00XA, T20.00XD, T20.00XS, T20.011A, T20.011D |
| 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 physeal fracture of left calcaneus, subsequent encounter for fracture with nonunion is a billable ICD-10-CM diagnosis code (S99.002K). | Burn and corrosion of head, face, and neck is a non-billable ICD-10-CM category code (T20). |
| 7th character | The appropriate 7th character is to be added to each code from subcategories S99.0 | The appropriate 7th character is to be added to each code from category T20 |
| Includes | — | burns and corrosions of first degree [erythema] burns and corrosions of second degree [blisters][epidermal loss] burns and corrosions of third degree [deep necrosis of underlying tissue] [full- thickness skin loss] |
| Use additional code | — | code from category T31 or T32 to identify extent of body surface involved |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources