2026 ICD-10-CM Diagnosis Code T82.867AThrombosis due to cardiac prosthetic devices, implants and grafts, initial encounter
ICD-10-CM Codes›S00–T88›T80-T88›T82
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- 7th Character A — Initial Encounter
T82.867A is a billable ICD-10-CM diagnosis code for thrombosis due to cardiac prosthetic devices, implants and grafts, 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 314 through 316. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 209 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Complication of cardiovascular device, implant or graft, initial encounter.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Arterial graft thrombosis
- Coronary artery stent thrombosis
- Coronary artery thrombosis
- Disorder of intra-aortic pulsation balloon
- Intra-aortic balloon thrombosis
- LVAD thrombosis
- Prosthetic cardiac valve thrombosis
- Thromboembolism from prosthetic heart valve
- Thrombosis associated with left ventricular assist device
- Thrombosis of coronary artery bypass graft
- Vascular graft thrombosis
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.
Convert T82.867A to ICD-9-CMHistory
Code HistoryHistory
Questions About T82.867AOverview
Is T82.867A a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report thrombosis due to cardiac prosthetic devices, implants and grafts, initial encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character A in T82.867A mean?
The final character A marks the initial encounter: use it while the patient is receiving active treatment for thrombosis due to cardiac prosthetic devices, implants and grafts, such as an emergency visit or first evaluation.
What MS-DRG does T82.867A group to?
When thrombosis due to cardiac prosthetic devices, implants and grafts, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 314, 315, 316, with relative weights from 0.6821 to 2.0852 depending on complications. Higher weights mean higher Medicare reimbursement.
Is T82.867A a CC or MCC?
CMS lists T82.867A as a CC (complication or comorbidity) for FY 2026. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 209 closely related codes in its exclusion list.
What is the ICD-9 equivalent of T82.867A?
Under the General Equivalence Mappings, thrombosis due to cardiac prosthetic devices, implants and grafts, initial encounter converts to ICD-9-CM 996.71 (comp-heart valve prosth) and 996.72 (comp-oth cardiac device). The mapping is approximate, so confirm the match fits the documentation.
