Y99 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: External cause status.
Notes
A single code from category Y99 should be used in conjunction with the external cause code(s) assigned to a record to indicate the status of the person at the time the event occurred.
Codes
Versions
2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code