Billable / Specific Code
ICD-10-CM T50.A15 is the diagnosis code for Adverse effect of pertussis vaccine, including combinations with a pertussis component. This code falls under the section "Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substances" 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 T50.A15 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, T50.A15 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
T50.A15 is the ICD-10-CM diagnosis code for "Adverse effect of pertussis vaccine, including combinations with a pertussis component". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of T50.A15 is T50.A1 ("Poisoning by, adverse effect of and underdosing of pertussis vaccine, including combinations with a pertussis component"). T50.A15 provides a more specific classification within this category.
T50.A15 is located in Section T36-T50 — "Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substances" within Chapter 19 of the ICD-10-CM Tabular List.
Use T50.A15 when the patients documented diagnosis matches "Adverse effect of pertussis vaccine, including combinations with a pertussis component" 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 Adverse effect of pertussis vaccine, including combinations with a pertussis component is T50.A15.
Yes, T50.A15 can be used as a primary diagnosis code since it is billable and specific.
T50.A15 is in Chapter 19 of the ICD-10-CM Tabular List.
Yes, T50.A15 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.