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ICD-10 diagnosis code

T33.9 Superficial frostbite of other and unspecified sites

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T33.9 is the ICD-10 code for Superficial frostbite of other and unspecified sites. It is a four-character subcategory of T33 (Superficial frostbite), the most specific level in the WHO edition. It belongs to the block T33–T35 (Frostbite) in Chapter XIX, Injury, poisoning and certain other consequences of external causes.

Code type
Subcategory (4 characters)
Chapter
XIX · S00–T98
Classification
WHO ICD-10, 2019 version

What T33.9 includes

Conditions and terms that are coded here.

  • Superficial frostbite (of):
    • NOS
    • leg NOS
    • trunk NOS

T33.9 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

T33.9Ytlig köldskada med andra och ospecificerade lokalisationer

NorwayICD-10-NO

T33.9Overfladisk frostskade med annen eller uspesifisert lokalisasjon

DenmarkICD-10-DK

DT339Overfladisk forfrysning UNS

FinlandICD-10-FI

T33.9Muiden tai määrittämättömien alueiden pinnallinen paleltumavamma

GermanyICD-10-GM

T33.9Oberflächliche Erfrierung an sonstigen und nicht näher bezeichneten Lokalisationen

FranceICD-10-FR

T33.9Gelure superficielle de localisations autres et non précisées

NetherlandsICD-10-NL

T33.9oppervlakkige bevriezing van overige en niet-gespecificeerde lokalisaties

United StatesICD-10-CM

Listed through more specific codes:

  • T33.90XASuperficial frostbite of unspecified sites, initial encounter
  • T33.90XDSuperficial frostbite of unspecified sites, subsequent encounter
  • T33.90XSSuperficial frostbite of unspecified sites, sequela
  • T33.99XASuperficial frostbite of other sites, initial encounter
  • T33.99XDSuperficial frostbite of other sites, subsequent encounter
  • T33.99XSSuperficial frostbite of other sites, sequela

Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.

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