2026 ICD-10-CM Diagnosis Code T82.190AOther mechanical complication of cardiac electrode, initial encounter

ICD-10-CM Codes›S00–T88›T80-T88›T82

ICD-10-CM T82.190A
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

T82.190A is a billable ICD-10-CM diagnosis code for other mechanical complication of cardiac electrode, initial encounter. The 7th character A marks it as an initial encounter code, used while the patient is receiving active treatment. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 308 through 310. Coders also document this condition as complication associated with cardiac pacemaker lead. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Complication of cardiovascular device, implant or graft, initial encounter.

Code Identity

ICD-10-CM Code
T82.190A
Billable Status
Yes — Valid for Submission
Code Describes
Other mechanical complication of cardiac electrode, initial encounter
Short Description
Mech compl of cardiac electrode, initial encounter
Parent Code
T82.190
Other mechanical complication of cardiac electrode

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionT80-T88Complications of surgical and medical care, not elsewhere classified
CategoryT82Complications of cardiac and vascular prosthetic devices, implants and grafts
This CodeT82.190AOther mechanical complication of cardiac electrode, initial encounter

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Complication associated with cardiac pacemaker lead
  • Dysfunction of cardiac pacemaker lead
  • Dysfunction of implantable cardiac defibrillator lead
  • Implanted defibrillator electrode lead fracture

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Complications of cardiac and vascular prosthetic devices, implants and grafts (T82). 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 INJ033
Complication of cardiovascular device, implant or graft, initial encounter
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Pacemakers and Implantable Defibrillators

An arrhythmia is any disorder of your heart rate or rhythm. It means that your heart beats too quickly, too slowly, or with an irregular pattern. Most arrhythmias result from problems in the electrical system of the heart. If your arrhythmia is serious, you may need a cardiac pacemaker or an implantable cardioverter defibrillator (ICD).

Read the full article at MedlinePlus

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

Convert T82.190A to ICD-9-CMHistory

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

ICD-9-CM
996.01 Malfunc cardiac pacemake
Approximate The match is approximate rather than exact.
ICD-9-CM
996.04 Mch cmp autm mplnt dfbrl
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 T82.190AOverview

Is T82.190A (Other mechanical complication of cardiac electrode) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other mechanical complication of cardiac electrode, initial encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character A in T82.190A mean?

The final character A marks the initial encounter: use it while the patient is receiving active treatment for other mechanical complication of cardiac electrode, such as an emergency visit or first evaluation.

What MS-DRG does T82.190A group to?

When other mechanical complication of cardiac electrode, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 308, 309, 310, with relative weights from 0.5661 to 1.2040 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of T82.190A?

Under the General Equivalence Mappings, other mechanical complication of cardiac electrode, initial encounter converts to ICD-9-CM 996.01 (malfunc cardiac pacemake) and 996.04 (mch cmp autm mplnt dfbrl). The mapping is approximate, so confirm the match fits the documentation.