T33.42XA
✓ BillableSuperficial frostbite of left arm, initial encounter
Injury, poisoning and certain other consequences of external causes (S00-T88)
⚠️ Excludes2
inheritedRules inherited from parent codes.
- • superficial frostbite of wrist and hand (T33.5-)
Clinical Description
ICD-10-CM code T33.42XA represents superficial frostbite of left arm, initial encounter. This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.
This is a 8-character code at the 7th level of specificity. This is the most specific code available in this subcategory.
Frequently Asked Questions
What is ICD-10 code T33.42XA?
ICD-10-CM code T33.42XA is "Superficial frostbite of left arm, initial encounter". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).
Is T33.42XA a billable ICD-10 code?
Yes, T33.42XA is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Can T33.42XA be coded with other codes?
T33.42XA has 1 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.
Related Codes in T33.42
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)