T50.A25Header code — not billable

Adverse effect of mixed bacterial vaccines without a pertussis component

Short description: Adverse effect of mixed bacterial vaccines w/o a pertuss

Chapter
19. Injury, poisoning and certain other consequences of external causes
Category
T50
Effective date
October 1, 2026

Related codes in category T50

Frequently asked questions

What is ICD-10 code T50.A25?

T50.A25 is an ICD-10-CM diagnosis code for Adverse effect of mixed bacterial vaccines without a pertussis component.

Is T50.A25 a billable code?

No. T50.A25 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is T50.A25 in?

T50.A25 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.

When did T50.A25 become effective?

T50.A25 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to T50.A25?

T50.A25 belongs to category T50, which includes 12 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.