Z80.1 Family history of malignant neoplasm of trachea, bronchus and lung

The ICD-10-CM code for Family history of malignant neoplasm of trachea, bronchus and lung is Z80.1 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

21: Factors influencing health status and contact with health services (Z00-Z99)

Section

Z77-Z99: Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)

Category Z80

19 codes (16 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to Z80.1:

• History › family (of) › malignant neoplasm (of) NOS › trachea
• History › family (of) › malignant neoplasm (of) NOS › lung
• History › family (of) › malignant neoplasm (of) NOS › bronchus

Inclusion Terms

• Conditions classifiable to C33-C34

U.S. Hospital Utilization

• An estimated 126,455 U.S. inpatient stays in 2023 included Z80.1 among the documented diagnoses.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Previous conditions: code if in final diagnostic statement; exclude resolved/no bearing

A. Previous conditions If the provider has included a diagnosis in the final diagnostic statement, such as the discharge summary or the face sheet, it should ordinarily be coded. Some providers include in the diagnostic statement resolved conditions or diagnoses and status-post procedures from previous admissions that have no bearing on the current stay. Such conditions are not to be reported and are coded only if required by hospital policy. However, history codes (categories Z80-Z87) may be used as secondary codes if the historical condition or family history has an impact on current care or influences treatment.

Code all documented coexisting conditions

J. Code all documented conditions that coexist Code all documented conditions that coexist at the time of the encounter/visit and that require or affect patient care, treatment or management. Do not code conditions that were previously treated and no longer exist. However, history codes (categories Z80-Z87) may be used as secondary codes if the historical condition or family history has an impact on current care or influences treatment.

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)