T84.21
⚠ Non-billable
Breakdown (mechanical) of internal fixation device of other bones
ICD-10-CM · FY2026 · Injury, Poisoning and Certain Other Consequences of External Causes
Code
T84.21
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Injury, Poisoning and Certain Other Consequences of External Causes
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code T84.21?
ICD-10-CM code T84.21 represents Breakdown (mechanical) of internal fixation device of other bones. It is a non-billable header code requiring a more specific subcategory in the Injury, Poisoning and Certain Other Consequences of External Causes chapter, effective October 1, 2025 – September 30, 2026.
Is T84.21 billable?
No. T84.21 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is T84.21 in?
T84.21 belongs to the Injury, Poisoning and Certain Other Consequences of External Causes chapter (S00–T88) of ICD-10-CM.
Related codes in the T84 category
T84
Complications of internal orthopedic prosthetic devices, implants and grafts
Non-billable
T84.0
Mechanical complication of internal joint prosthesis
Non-billable
T84.01
Broken internal joint prosthesis
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T84.02
Dislocation of internal joint prosthesis
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T84.010
Broken internal right hip prosthesis
Non-billable
T84.011
Broken internal left hip prosthesis
Non-billable
T84.012
Broken internal right knee prosthesis
Non-billable
T84.013
Broken internal left knee prosthesis
Non-billable
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