Y84Header code — not billable

Other medical procedures as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure

Short description: Oth medical procedures cause abn react/compl, w/o misadvnt

Chapter
20. External causes of morbidity
Category
Y84
Effective date
October 1, 2026

Related codes in category Y84

Frequently asked questions

What is ICD-10 code Y84?

Y84 is an ICD-10-CM diagnosis code for Other medical procedures as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure.

Is Y84 a billable code?

No. Y84 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 Y84 in?

Y84 falls under Chapter 20: External causes of morbidity.

When did Y84 become effective?

Y84 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to Y84?

Y84 belongs to category Y84, which includes 10 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.