T37.3X6Header code — not billable

Underdosing of other antiprotozoal drugs

Chapter
19. Injury, poisoning and certain other consequences of external causes
Category
T37
Effective date
October 1, 2026

Related codes in category T37

Frequently asked questions

What is ICD-10 code T37.3X6?

T37.3X6 is an ICD-10-CM diagnosis code for Underdosing of other antiprotozoal drugs.

Is T37.3X6 a billable code?

No. T37.3X6 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 T37.3X6 in?

T37.3X6 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.

When did T37.3X6 become effective?

T37.3X6 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to T37.3X6?

T37.3X6 belongs to category T37, 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.