ICD-10-CM 2027 diagnosis code

Y63Failure in dosage during surgical and medical care

Not billable — use a more specific code

Y63 is a header code, so it can't be reported by itself. Choose one of the 9 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 Y63

Y63 is the ICD-10-CM diagnosis code for failure in dosage during surgical and medical care. It belongs to block Y62-Y69 (misadventures to patients during surgical and medical care) and chapter 20 (external causes of morbidity). It is a header code, so it can't be reported by itself; one of its 9 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: Y63.0 (infusion), Y63.1 (infusion), Y63.2 (therapy), Y63.3 (care), Y63.4 (therapy), Y63.5 (packing), Y63.6 (substance), Y63.8 (care) and 1 more.

The conditions in its Excludes2 note aren't part of Y63, but may be coded alongside it if the patient has both: accidental overdose of drug or wrong drug given in error (T36-T50).

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 Y63

Coding notes

Excludes2Not included here — may be reported together if both conditions exist

accidental overdose of drug or wrong drug given in error (T36-T50)

Notes that apply from higher levels

Instructions written at a parent level also apply to Y63.

Broader instructions also apply from Y62-Y69 Misadventures to patients during surgical and medical care and Chapter 20: External causes of morbidity.

Code history

2016
2017
2018
2019
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 Y63

Is Y63 billable?: No. Y63 is a header code. Report one of its more specific subcodes instead.