ICD-10-CM 2027 diagnosis code
T82.221Breakdown (mechanical) of biological heart valve graft
T82.221 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.
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 T82.221
T82.221 is the ICD-10-CM diagnosis code for breakdown (mechanical) of biological heart valve graft. It belongs to category T82 (complications of cardiac and vascular 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 T82.22 (mechanical complication of biological heart valve graft), T82.221 is specifically for breakdown (mechanical) of biological heart valve graft. Related codes cover displacement of biological heart valve graft (T82.222), leakage of biological heart valve graft (T82.223) and other mechanical complication of biological heart valve graft (T82.228).
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 T82
Notes that apply from higher levels
Instructions written at a parent level also apply to T82.221.
› From T82.2 Mechanical complication of coronary artery bypass graft and biological heart valve graft
- mechanical complication of artificial heart valve prosthesis (T82.0-)
› From T82 Complications of cardiac and vascular prosthetic devices, implants and grafts
- failure and rejection of transplanted organs and tissue (T86.-)
Broader instructions also apply from T80-T88 Complications of surgical and medical care, not elsewhere classified and Chapter 19: Injury, poisoning and certain other consequences of external causes.
Alphabetic index entries
1 entriesTerms in the official ICD-10-CM index that lead to T82.221.
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 T82.221
Is T82.221 billable?
- No. T82.221 is a header code. Report one of its more specific subcodes instead.