Non-Billable / Non-Specific Code
ICD-10-CM T21 is the diagnosis code for Burn and corrosion of trunk. This code falls under the section "Burns and corrosions of external body surface, specified by site" within Chapter 19 â 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.
The following conditions are not included in T21. If the patient has both, code each condition separately:
Understanding where T21 sits in the ICD-10-CM classification helps ensure proper coding:
No, T21 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
T21 is the ICD-10-CM diagnosis code for "Burn and corrosion of trunk". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
T21 is located in Section T20-T25 â "Burns and corrosions of external body surface, specified by site" within Chapter 19 of the ICD-10-CM Tabular List.
T21 has 8 sub-code(s) that provide more specific detail: T21.0, T21.1, T21.2, T21.3, T21.4 and more.
Use T21 when the patients documented diagnosis matches "Burn and corrosion of trunk" 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 Burn and corrosion of trunk is T21.
No, T21 is non-billable. Use a more specific sub-code for primary diagnosis billing.
T21 is in Chapter 19 of the ICD-10-CM Tabular List.
Yes, T21 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.