T84.11 ICD-10-CM Code: Breakdown (mechanical) of internal fixation device of bones of limb
T84.11 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · HCC Buddy coding tools
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FY 2026 Apr update / Injury, poisoning and certain other consequences of external causes (S00-T88) / Complications of surgical and medical care, not elsewhere classified (T80-T88)
T84.11
Header CodeICD-10-CMOfficial ICD-10-CMCodebook guidanceBreakdown (mechanical) of internal fixation device of bones of limb
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
OfficialNo inclusion terms are included in this display for T84.11. Check the code and parent instructions in the Code Book.
Excludes 2
Official- birth trauma (P10-P15)Inherited from S00-T88, T80-T88, T84, T84.1
- obstetric trauma (O70-O71)Inherited from S00-T88, T80-T88, T84, T84.1
- any encounters with medical care for postprocedural conditions in which no complications are present, such as:Inherited from S00-T88, T80-T88, T84, T84.1
- artificial opening status (Z93.-)Inherited from S00-T88, T80-T88, T84, T84.1
- closure of external stoma (Z43.-)Inherited from S00-T88, T80-T88, T84, T84.1
- fitting and adjustment of external prosthetic device (Z44.-)Inherited from S00-T88, T80-T88, T84, T84.1
- burns and corrosions from local applications and irradiation (T20-T32)Inherited from S00-T88, T80-T88, T84, T84.1
- complications of surgical procedures during pregnancy, childbirth and the puerperium (O00-O9A)Inherited from S00-T88, T80-T88, T84, T84.1
- mechanical complication of respirator [ventilator] (J95.850)Inherited from S00-T88, T80-T88, T84, T84.1
- poisoning and toxic effects of drugs and chemicals (T36-T65 with fifth or sixth character 1-4 or 6)Inherited from S00-T88, T80-T88, T84, T84.1
- postprocedural fever (R50.82)Inherited from S00-T88, T80-T88, T84, T84.1
- specified complications classified elsewhere, such as:Inherited from S00-T88, T80-T88, T84, T84.1
- cerebrospinal fluid leak from spinal puncture (G97.0)Inherited from S00-T88, T80-T88, T84, T84.1
- colostomy malfunction (K94.0-)Inherited from S00-T88, T80-T88, T84, T84.1
- disorders of fluid and electrolyte imbalance (E86-E87)Inherited from S00-T88, T80-T88, T84, T84.1
- functional disturbances following cardiac surgery (I97.0-I97.1)Inherited from S00-T88, T80-T88, T84, T84.1
- intraoperative and postprocedural complications of specified body systems (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95.6-, J95.7, K91.6-, L76.-, M96.-, N99.-)Inherited from S00-T88, T80-T88, T84, T84.1
- ostomy complications (J95.0-, K94.-, N99.5-)Inherited from S00-T88, T80-T88, T84, T84.1
- postgastric surgery syndromes (K91.1)Inherited from S00-T88, T80-T88, T84, T84.1
- postlaminectomy syndrome NEC (M96.1)Inherited from S00-T88, T80-T88, T84, T84.1
- postmastectomy lymphedema syndrome (I97.2)Inherited from S00-T88, T80-T88, T84, T84.1
- postsurgical blind-loop syndrome (K91.2)Inherited from S00-T88, T80-T88, T84, T84.1
- ventilator associated pneumonia (J95.851)Inherited from S00-T88, T80-T88, T84, T84.1
- failure and rejection of transplanted organs and tissues (T86.-)Inherited from S00-T88, T80-T88, T84, T84.1
- fracture of bone following insertion of orthopedic implant, joint prosthesis or bone plate (M96.6)Inherited from S00-T88, T80-T88, T84, T84.1
- mechanical complication of internal fixation device of bones of feet (T84.2-)Inherited from S00-T88, T80-T88, T84, T84.1
- mechanical complication of internal fixation device of bones of fingers (T84.2-)Inherited from S00-T88, T80-T88, T84, T84.1
- mechanical complication of internal fixation device of bones of hands (T84.2-)Inherited from S00-T88, T80-T88, T84, T84.1
- mechanical complication of internal fixation device of bones of toes (T84.2-)Inherited from S00-T88, T80-T88, T84, T84.1
Related Codes
Includes
OfficialNo Includes notes are included in this display for T84.11. Check the code and parent instructions in the Code Book.
Excludes 1
OfficialNo Excludes 1 notes are included in this display for T84.11. Check the code and parent instructions in the Code Book.
Code First
OfficialNo Code First sequencing instructions are included in this display for T84.11. Check the code and parent instructions in the Code Book.
Use Additional
Official- code to identify any retained foreign body, if applicable (Z18.-)Inherited from S00-T88, T80-T88
- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)Inherited from S00-T88, T80-T88
- code(s) to identify the specified condition resulting from the complicationInherited from S00-T88, T80-T88
- code to identify devices involved and details of circumstances (Y62-Y82)Inherited from S00-T88, T80-T88
Code Also
OfficialNo Code Also instructions are included in this display for T84.11. Check the code and parent instructions in the Code Book.
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
- Code
- T84.11
- Description
- Breakdown (mechanical) of internal fixation device of bones of limb
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- Billable
- No
- Payment year
- 2026
Coder workflow notes
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What This Code Means
T84.11 is the ICD-10-CM diagnosis code for breakdown (mechanical) of internal fixation device of bones of limb. T84.11 sits in the ICD-10-CM chapter for injury, poisoning and certain other consequences of external causes (s00-t88), within the section covering complications of surgical and medical care, not elsewhere classified (t80-t88).
Header codes like T84.11 cannot be reported on claims directly; they organize child codes that share clinical context. Coders should select the billable child code that matches the documented presentation and then verify its current source-backed HCC mapping. Do not infer a child code or risk adjustment value from the header alone.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for T84.11 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.