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S52.92XS vs T33

S52.92XS (Unspecified fracture of left forearm, sequela) compared with T33 (Superficial frostbite), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2). MedCoder-derived

Can these codes be reported together?

Informational

Excludes2 relationship

S52.92XS
Unspecified fracture of left forearm, sequela
↔
T33
Superficial frostbite

What we found

Yes, when both are documented.S52.92XS carries an Excludes2 note covering T33: “frostbite (T33-T34)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

What to review

Report both only when the documentation supports both conditions; otherwise report the one documented.

Guide: Excludes1 vs Excludes2Check these on a claim

Why it matters

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 / rule

CMS ICD-10-CM tabular instructional notes

Side by side

S52.92XSUnspecified fracture of left forearm, sequelaT33Superficial frostbite
Billing statusBillableNon-billable header

Report instead: T33.011A, T33.011D, T33.011S, T33.012A, T33.012D

ClassificationS00-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)
DefinitionUnspecified fracture of left forearm, sequela is a billable ICD-10-CM diagnosis code (S52.92XS).Superficial frostbite is a non-billable ICD-10-CM category code (T33).
7th characterThe appropriate 7th character is to be added to all codes from category S52The appropriate 7th character is to be added to each code from category T33
Includes—
frostbite with partial thickness skin loss
Excludes1
traumatic amputation of forearm (S58.-)
—
Excludes2
fracture at wrist and hand level (S62.-)
periprosthetic fracture around internal prosthetic elbow joint (M97.4)
burns and corrosions (T20-T32)
frostbite (T33-T34)
injuries of wrist and hand (S60-S69)
insect bite or sting, venomous (T63.4)
hypothermia and other effects of reduced temperature (T68, T69.-)

Notes are the code’s own tabular entry, quoted as published. A note that names the other code is the one the verdict above rests on.

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Derived from the official CMS ICD-10-CM tabular data (FY2026). A coding-rule comparison, not billing advice: payer-specific edits and medical-necessity policy are outside its scope. All data sources