ICD-10-CM 2027 diagnosis code
T84.093Other mechanical complication of internal left knee prosthesis
T84.093 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it and add the required 7th character.Short description: Mech compl of internal left knee prosthesis
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 T84.093
T84.093 is the ICD-10-CM diagnosis code for other mechanical complication of internal left knee prosthesis. It belongs to category T84 (complications of internal orthopedic prosthetic devices, implants and grafts), block T80-T88 (complications of surgical and medical care, not elsewhere classified) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.
Within T84.09 (other mechanical complication of internal joint prosthesis), T84.093 is specifically for other mechanical complication of internal left knee prosthesis. Related codes cover internal right hip prosthesis (T84.090), internal left hip prosthesis (T84.091), internal right knee prosthesis (T84.092), other internal joint prosthesis (T84.098) and unspecified internal joint prosthesis (T84.099).
Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
7th character
The appropriate 7th character is to be added to each code from category T84
Notes that apply from higher levels
Instructions written at a parent level also apply to T84.093.
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 T84.093
Is T84.093 billable?
- No. T84.093 is a header code. Report one of its more specific subcodes instead.