2026 ICD-10-CM Diagnosis Code Z86.718Personal history of other venous thrombosis and embolism

ICD-10-CM Codes›Z00–Z99›Z77-Z99›Z86

ICD-10-CM Z86.718
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Z86.718 is a billable ICD-10-CM diagnosis code for personal history of other venous thrombosis and embolism. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is not accepted as a principal diagnosis by the Medicare Code Editor and exempt from POA reporting. Coders also document this condition as H/O: embolism. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Personal history of other disease.

Code Identity

ICD-10-CM Code
Z86.718
Billable Status
Yes — Valid for Submission
Code Describes
Personal history of other venous thrombosis and embolism
Short Description
Personal history of other venous thrombosis and embolism
Same as the full description in the CMS dataset.
Parent Code
Z86.71
Personal history of venous thrombosis and embolism

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ77-Z99Persons with potential health hazards related to family and personal history and certain conditions influencing health status
CategoryZ86Personal history of certain other diseases
This CodeZ86.718Personal history of other venous thrombosis and embolism

Code EditsBilling

Medicare Code Editor checks that affect claim validity for Z86.718.

Unacceptable principal diagnosis
There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Present on Admission (POA)Billing

Z86.718 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.

  • H/O: embolism
  • H/O: thromboembolism
  • H/O: thrombosis
  • History of branch retinal vein occlusion
  • History of deep vein thrombosis
  • History of occlusion of central retinal vein
  • History of recurrent deep vein thrombosis
  • History of thromboembolism of vein
  • History of thrombosis of internal jugular vein
  • History of venous thrombosis

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • History
      • personal (of)
        • embolism (venous)
    • History
      • personal (of)
        • thrombosis (venous)
    • History
      • personal (of)
        • venous thrombosis or embolism
    • Thrombosis, thrombotic(bland) (multiple) (progressive) (silent) (vessel)
      • history (of)
    • Thrombosis, thrombotic(bland) (multiple) (progressive) (silent) (vessel)
      • personal history (of)

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR FAC030
Personal history of other disease
Default principal diagnosis: inpatient No · outpatient Yes

Patient EducationClinical

Deep Vein Thrombosis

Deep vein thrombosis, or DVT, is a blood clot that forms in a vein deep in the body. Most deep vein clots occur in the lower leg or thigh. If the vein swells, the condition is called thrombophlebitis. A deep vein thrombosis can break loose and cause a serious problem in the lung, called a pulmonary embolism.

Read the full article at MedlinePlus

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

Convert Z86.718 to ICD-9-CMHistory

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

ICD-9-CM
V12.51 Hx-ven thrombosis/embols
Exact Match The mapping is direct, with no qualifiers.

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 Z86.718Overview

Is Z86.718 (Personal history of venous thrombosis and embolism) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report personal history of other venous thrombosis and embolism on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Can Z86.718 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because personal history of other venous thrombosis and embolism describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.

Is Z86.718 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 personal history of other venous thrombosis and embolism on inpatient claims.

What is the ICD-9 equivalent of Z86.718?

Under the General Equivalence Mappings, personal history of other venous thrombosis and embolism converts to ICD-9-CM V12.51 (hx-ven thrombosis/embols). The mapping is a direct match.