ICD-10-CM T33 is the diagnosis code for Superficial frostbite. This code falls under the section "Frostbite" within Chapter 19 — Injury, poisoning and certain other consequences of external causes (S00-T88). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where T33 sits in the ICD-10-CM classification helps ensure proper coding:
No, T33 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
T33 is the ICD-10-CM diagnosis code for "Superficial frostbite". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
T33 is located in Section T33-T34 — "Frostbite" within Chapter 19 of the ICD-10-CM Tabular List.
T33 has 10 sub-code(s) that provide more specific detail: T33.0, T33.1, T33.2, T33.3, T33.4 and more.
Use T33 when the patients documented diagnosis matches "Superficial frostbite" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Superficial frostbite is T33.
No, T33 is non-billable. Use a more specific sub-code for primary diagnosis billing.
T33 is in Chapter 19 of the ICD-10-CM Tabular List.
Yes, T33 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.