T50.A26D

Billable

Underdosing of mixed bacterial vaccines without a pertussis component, subsequent encounter

T50.A26D is the ICD-10-CM code for Underdosing of mixed bacterial vaccines without a pertussis component, subsequent encounter. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
S00-T88
Parent
T50.A26
Edition
FY2026

S00-T88 Injury, poisoning and certain other consequences of external causes

What this means — in plain language

MedlinePlus · NIH

Medicines treat infectious diseases, prevent problems from chronic diseases, and ease pain. But medicines can also cause harmful reactions if not used correctly. Errors can happen in the hospital, at the health care provider's office, at the pharmacy, or at home. You can help prevent errors by: Knowing your medicines. When you get a prescription, ask the name of the medicine and check to make sure that the pharmacy…

Read more about Medication Errors at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code T50.A26D?
T50.A26D is the ICD-10-CM code for "Underdosing of mixed bacterial vaccines without a pertussis component, subsequent encounter". It falls under S00-T88 Injury, poisoning and certain other consequences of external causes.
Is T50.A26D a billable code?
Yes — T50.A26D is a billable, specific ICD-10-CM code valid for reimbursement.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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