T34.99XD vs T68
T34.99XD (Frostbite with tissue necrosis of other sites, subsequent encounter) compared with T68 (Hypothermia), 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. T34.99XD carries an Excludes2 note covering T68: “hypothermia and other effects of reduced temperature (T68, T69.-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Yes, when both are documented. T68 carries an Excludes2 note covering T34.99XD: “frostbite (T33-T34)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| T34.99XDFrostbite with tissue necrosis of other sites, subsequent encounter | T68Hypothermia | |
|---|---|---|
| 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 | Frostbite with tissue necrosis of other sites, subsequent encounter is a billable ICD-10-CM diagnosis code (T34.99D). | Hypothermia is a non-billable ICD-10-CM category code (T68). |
| 7th character | The appropriate 7th character is to be added to each code from category T34 | The appropriate 7th character is to be added to code T68 |
| Includes | Frostbite with tissue necrosis of leg NOS Frostbite with tissue necrosis of trunk NOS | Accidental hypothermia Hypothermia NOS |
| Use additional code | — | code to identify source of exposure: Exposure to excessive cold of man-made origin (W93) Exposure to excessive cold of natural origin (X31) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources