ICD-10-CM 2027 diagnosis code

Y78Radiological devices associated with adverse incidents

Not billable — use a more specific code

Y78 is a header code, so it can't be reported by itself. Choose one of the 5 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About Y78

Y78 is the ICD-10-CM diagnosis code for radiological devices associated with adverse incidents. It belongs to block Y70-Y82 (medical devices associated with adverse incidents in diagnostic and therapeutic use) and chapter 20 (external causes of morbidity). It is a header code, so it can't be reported by itself; one of its 5 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: Y78.0 (incidents), Y78.1 (incidents), Y78.2 (incidents), Y78.3 (incidents) and Y78.8 (classified).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under Y78

Notes that apply from higher levels

Instructions written at a parent level also apply to Y78.

Broader instructions also apply from Y70-Y82 Medical devices associated with adverse incidents in diagnostic and therapeutic use and Chapter 20: External causes of morbidity.

Code history

2016
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2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about Y78

Is Y78 billable?: No. Y78 is a header code. Report one of its more specific subcodes instead.