2026 ICD-10-CM Diagnosis Code T84.129SDisplacement of internal fixation device of unspecified bone of limb, sequela
T84.129S is a billable ICD-10-CM diagnosis code for displacement of internal fixation device of unspecified bone of limb, sequela. The 7th character S marks it as a sequela code, which reports a problem that remains after the original condition has resolved. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 922 through 923. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Complication, sequela.
Code Identity
Code Classification
Present on Admission (POA)Billing
T84.129S is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Complications of internal orthopedic prosthetic devices, implants and grafts (T84). Use the following options for the applicable episode of care:
- A - initial encounter
- D - subsequent encounter
- S - sequela
Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2026, published by CMS and the National Center for Health Statistics.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Fractures
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The full article covers:
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Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert T84.129S to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About T84.129SOverview
Is T84.129S a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report displacement of internal fixation device of unspecified bone of limb, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character S in T84.129S mean?
The final character S makes this a sequela code: it reports a lingering problem that remains after the displacement of internal fixation device of unspecified bone of limb itself has resolved, not the original event.
What MS-DRG does T84.129S group to?
When displacement of internal fixation device of unspecified bone of limb, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 922, 923, with relative weights from 1.0177 to 1.7494 depending on complications. Higher weights mean higher Medicare reimbursement.
Is T84.129S exempt from POA reporting?
Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for displacement of internal fixation device of unspecified bone of limb, sequela on inpatient claims.
What is the ICD-9 equivalent of T84.129S?
Under the General Equivalence Mappings, displacement of internal fixation device of unspecified bone of limb, sequela converts to ICD-9-CM 909.3 (late eff surg/med compl). The mapping is approximate, so confirm the match fits the documentation.
