2026 ICD-10-CM Diagnosis Code T84.619SInfection and inflammatory reaction due to internal fixation device of unspecified bone of arm, sequela

ICD-10-CM Codes›S00–T88›T80-T88›T84

ICD-10-CM T84.619S
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

T84.619S is a billable ICD-10-CM diagnosis code for infection and inflammatory reaction due to internal fixation device of unspecified bone of arm, 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. Coders also document this condition as infection of bone of hand associated with internal fixation device. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Complication, sequela.

Code Identity

ICD-10-CM Code
T84.619S
Billable Status
Yes — Valid for Submission
Code Describes
Infection and inflammatory reaction due to internal fixation device of unspecified bone of arm, sequela
Short Description
Infect/inflm react due to int fix of unsp bone of arm, sqla
Parent Code
T84.619
Infection and inflammatory reaction due to internal fixation device of unspecified bone of arm

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionT80-T88Complications of surgical and medical care, not elsewhere classified
CategoryT84Complications of internal orthopedic prosthetic devices, implants and grafts
This CodeT84.619SInfection and inflammatory reaction due to internal fixation device of unspecified bone of arm, sequela

Present on Admission (POA)Billing

T84.619S is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Infection of bone of hand associated with internal fixation device
  • Infection of bone of left hand associated with internal fixation device
  • Infection of bone of right hand associated with internal fixation device
  • Infection of humerus
  • Infection of humerus associated with internal fixation device

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.

CCSR INJ076
Complication, sequela
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Fractures

A fracture is a break in a bone. Fractures are usually caused by injuries. Since they can sometimes be serious, it's important to get medical care right away if you think you have a fracture.

The full article covers:

  • What is a fracture?
  • What are the different types of fractures?
  • What causes fractures?
  • What are the symptoms of a fracture?
  • How are fractures diagnosed?
  • What are the treatments for fractures?
  • Can fractures be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert T84.619S to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
909.3 Late eff surg/med compl
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About T84.619SOverview

Is T84.619S a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report infection and inflammatory reaction due to internal fixation device of unspecified bone of arm, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character S in T84.619S mean?

The final character S makes this a sequela code: it reports a lingering problem that remains after the infection and inflammatory reaction due to internal fixation device of unspecified bone of arm itself has resolved, not the original event.

What MS-DRG does T84.619S group to?

When infection and inflammatory reaction due to internal fixation device of unspecified bone of arm, 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 T84.619S 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 infection and inflammatory reaction due to internal fixation device of unspecified bone of arm, sequela on inpatient claims.

What is the ICD-9 equivalent of T84.619S?

Under the General Equivalence Mappings, infection and inflammatory reaction due to internal fixation device of unspecified bone of arm, sequela converts to ICD-9-CM 909.3 (late eff surg/med compl). The mapping is approximate, so confirm the match fits the documentation.