T33.1XXD Superficial frostbite of neck, subsequent encounter

ICD-10-CM T33.1XXD: Superficial frostbite of neck, subsequent encounter

ICD-10-CM code T33.1XXD is an active terminology concept representing superficial frostbite of the neck for a subsequent encounter. The code is classified under the semantic type of injury or poisoning. It is cataloged within version 2026 of the ICD-10-CM terminology and appears in broader clinical lists of superficial frostbite conditions. 1 4

Plain-language overview

Superficial frostbite is a cold-related injury beginning with ice crystal formation in tissue, and superficial cases may involve skin reddening, edema, or clear fluid-filled blisters with a favorable prognosis. 3

The diagnostic label for T33.1XXD is superficial frostbite of the neck, subsequent encounter, providing a specific terminology designation for this injury within the active 2026 ICD-10-CM version. 1

What this code represents

The code T33.1XXD represents a diagnosis categorized under the semantic type of injury or poisoning, specifically denoting a superficial frostbite of the neck for a subsequent encounter. 1

Within the ICD-10-CM hierarchy, T33.1XXD is a narrower concept that falls under the parent code T33.1, which is the general terminology record for superficial frostbite of the neck. 1

Coding details

The specific phrase superficial frostbite of neck, subsequent encounter appears in broader clinical code mappings alongside other subsequent encounter frostbite injuries affecting the ears, nose, thorax, and extremities. 4

Documentation considerations

Clinical descriptions of superficial frostbite include physical tissue damage such as skin reddening, edema, and the presence or absence of clear fluid-filled blisters. 3

What the sources add

While the terminology record establishes the official code definition and hierarchy, clinical travel guidance adds context regarding the physical presentation and favorable prognosis of superficial frostbite injuries. 1 3

A separate pharmacological review mentions frostbite as a potential risk of inappropriate cold therapy application, contrasting the environmental causes of frostbite discussed in travel health guidelines. 2 3

Sources

1. ICD-10-CM T33.1XXD terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Heat Therapy for Musculoskeletal Pain Conditions: Actionable Suggestions for Pharmacists from a Panel of Experts — pmc.ncbi.nlm.nih.gov; accessed 2026-07-27.
3. Heat and Cold Illness in Travelers — cdc.gov; accessed 2026-07-27.
4. Phecode 1014 · ExPRSweb — csg.sph.umich.edu; accessed 2026-07-27.