Non-Billable / Non-Specific Code
ICD-10-CM T80.5 is the diagnosis code for Anaphylactic reaction due to serum. 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 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 should never be coded at the same time as T80.5. They are mutually exclusive:
Understanding where T80.5 sits in the ICD-10-CM classification helps ensure proper coding:
No, T80.5 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
T80.5 is the ICD-10-CM diagnosis code for "Anaphylactic reaction due to serum". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of T80.5 is T80 ("Complications following infusion, transfusion and therapeutic injection"). T80.5 provides a more specific classification within this category.
T80.5 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.
T80.5 has 3 sub-code(s) that provide more specific detail: T80.51, T80.52, T80.59.
Use T80.5 when the patients documented diagnosis matches "Anaphylactic reaction due to serum" 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 Anaphylactic reaction due to serum is T80.5.
No, T80.5 is non-billable. Use a more specific sub-code for primary diagnosis billing.
T80.5 is in Chapter 19 of the ICD-10-CM Tabular List.
Type 1 Excludes for T80.5 include: ABO incompatibility reaction due to transfusion of blood or blood products (T80.3-); allergic reaction or shock NOS (T78.2); anaphylactic reaction or shock NOS (T78.2) and more.
Yes, T80.5 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.