T33.832 Superficial frostbite of left toe(s)

ICD-10-CM T33.832: Superficial frostbite of left toe(s)

ICD-10-CM code T33.832 represents superficial frostbite of the left toe(s) and is an active terminology concept. Frostbite is tissue damage from cold exposure below zero degrees Celsius. This code provides specific laterality for left toe involvement within the broader toe frostbite category. 1 2

Plain-language overview

Frostbite is freezing cold injury causing tissue damage due to cold exposure at temperatures below zero degrees Celsius, and superficial frostbite affects the epidermis and subcutaneous fat. 2

What this code represents

ICD-10-CM code T33.832 is an active diagnosis concept with the preferred name superficial frostbite of left toe(s), classified under the semantic type of Injury or Poisoning. 1

Coding details

Code T33.832 is a child of parent concept T33.83 for superficial frostbite of toe(s), and the terminology record indicates this specific code has no narrower concepts. 1

Within the T33.83 category for superficial frostbite of toe(s), the terminology distinguishes left toe(s), right toe(s), and unspecified toe(s) as separate specific codes. 4

Clinical context

Homeless populations, children, and the elderly are especially vulnerable to frostbite, while peripheral vascular disease, malnutrition, Raynaud's disease, diabetes mellitus, and tobacco use may worsen tissue damage. 2

Superficial frostbite affecting the epidermis and subcutaneous fat will present with pale, white blisters upon rewarming the affected tissue, according to clinical reference material. 2

Documentation considerations

The terminology record identifies the left toe(s) as the specific anatomical site and laterality for T33.832, distinguishing it from codes for right toe(s) and unspecified toe(s). 1 4

What the sources add

While the terminology record defines the code structure and clinical text describes frostbite pathology, neither source provides payer-specific coverage rules or reimbursement guidelines for this diagnosis. 1 2

The terminology record establishes T33.832 as an active 2026 ICD-10-CM concept, whereas the coding reference situates it among related toe, foot, and ankle frostbite codes in section T33. 1 4

Sources

1. ICD-10-CM T33.832 terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Bookshelf — ncbi.nlm.nih.gov; accessed 2026-07-27.
3. Phecode 1014 · ExPRSweb — csg.sph.umich.edu; accessed 2026-07-27.
4. Coding: ICD-10-CM Section T33-T34 — medicalcodecenter.com; accessed 2026-07-27.