2026 ICD-10-CM Diagnosis Code Z80.43Family history of malignant neoplasm of testis

ICD-10-CM Codes›Z00–Z99›Z77-Z99›Z80

ICD-10-CM Z80.43
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Z80.43 is a billable ICD-10-CM diagnosis code for family history of malignant neoplasm of testis. 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 family history of malignant neoplasm of genital structure. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Family history of disease.

Code Identity

ICD-10-CM Code
Z80.43
Billable Status
Yes — Valid for Submission
Code Describes
Family history of malignant neoplasm of testis
Short Description
Family history of malignant neoplasm of testis
Same as the full description in the CMS dataset.
Parent Code
Z80.4
Family history of malignant neoplasm of genital organs

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
CategoryZ80Family history of primary malignant neoplasm
This CodeZ80.43Family history of malignant neoplasm of testis

Code EditsBilling

Medicare Code Editor checks that affect claim validity for Z80.43.

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

Z80.43 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.

  • Family history of malignant neoplasm of genital structure
  • Family history of malignant neoplasm of testis
  • Family history of neoplasm of male genital organ

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
      • family (of)
        • malignant neoplasm (of) NOS
          • genital organ
            • testis
    • History
      • family (of)
        • malignant neoplasm (of) NOS
          • testis

Clinical ClassificationClinical

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

CCSR FAC028
Family history of disease
Default principal diagnosis: inpatient No · outpatient Yes

Patient EducationClinical

Family History

Your family history includes health information about you and your close relatives. Families have many factors in common, including their genes, environment, and lifestyle. Looking at these factors can help you figure out whether you have a higher risk for certain health problems, such as heart disease, stroke, and cancer.

Read the full article at MedlinePlus

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

Convert Z80.43 to ICD-9-CMHistory

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

ICD-9-CM
V16.43 Fm hx testis malig
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 Z80.43Overview

Is Z80.43 (Family history of malignant neoplasm of genital organs) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report family history of malignant neoplasm of testis on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Can Z80.43 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because family history of malignant neoplasm of testis describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.

Is Z80.43 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 family history of malignant neoplasm of testis on inpatient claims.

What is the ICD-9 equivalent of Z80.43?

Under the General Equivalence Mappings, family history of malignant neoplasm of testis converts to ICD-9-CM V16.43 (fm hx testis malig). The mapping is a direct match.