Billable / Specific Code
ICD-10-CM T33.90 is the diagnosis code for Superficial frostbite of unspecified sites. This code falls under the section "Frostbite" within Chapter 19 — Injury, poisoning and certain other consequences of external causes (S00-T88). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where T33.90 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, T33.90 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
T33.90 is the ICD-10-CM diagnosis code for "Superficial frostbite of unspecified sites". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of T33.90 is T33.9 ("Superficial frostbite of other and unspecified sites"). T33.90 provides a more specific classification within this category.
T33.90 is located in Section T33-T34 — "Frostbite" within Chapter 19 of the ICD-10-CM Tabular List.
Use T33.90 when the patients documented diagnosis matches "Superficial frostbite of unspecified sites" 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 of unspecified sites is T33.90.
Yes, T33.90 can be used as a primary diagnosis code since it is billable and specific.
T33.90 is in Chapter 19 of the ICD-10-CM Tabular List.
Yes, T33.90 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.