Billable / Specific Code
ICD-10-CM T81.521 is the diagnosis code for Obstruction due to foreign body accidentally left in body following infusion or transfusion. This code falls under the section "Complications of surgical and medical care, not elsewhere classified" 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.
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 T81.521 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, T81.521 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
T81.521 is the ICD-10-CM diagnosis code for "Obstruction due to foreign body accidentally left in body following infusion or transfusion". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of T81.521 is T81.52 ("Obstruction due to foreign body accidentally left in body following procedure"). T81.521 provides a more specific classification within this category.
T81.521 is located in Section T80-T88 — "Complications of surgical and medical care, not elsewhere classified" within Chapter 19 of the ICD-10-CM Tabular List.
Use T81.521 when the patients documented diagnosis matches "Obstruction due to foreign body accidentally left in body following infusion or transfusion" 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 Obstruction due to foreign body accidentally left in body following infusion or transfusion is T81.521.
Yes, T81.521 can be used as a primary diagnosis code since it is billable and specific.
T81.521 is in Chapter 19 of the ICD-10-CM Tabular List.
Yes, T81.521 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.