Z59.0 Homelessness

The ICD-10-CM code for Homelessness is Z59.0 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Chapter

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

Section

Z55-Z65: Persons with potential health hazards related to socioeconomic and psychosocial circumstances (Z55-Z65)

Category Z59

33 codes (25 billable)

FY2026 Status

Stable since FY2024

U.S. Hospital Utilization

• An estimated 325,190 U.S. inpatient stays in 2021 included Z59.0 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

External cause of morbidity and Z codes; assign all needed codes

between healthcare facilities, or provide additional information relevant to a patient encounter. The ICD-10-CM Official Guidelines for Coding and Reporting identify which codes maybe assigned as principal or first-listed diagnosis only, secondary diagnosis only, or principal/first-listed or secondary (depending on the circumstances). Possible applicable Z codes include: Z59.0-, Homelessness Z59.1, Inadequate housing Z59.5, Extreme poverty Z75.1, Person awaiting admission to adequate facility elsewhere Z75.3, Unavailability and inaccessibility of health-care facilities Z75.4, Unavailability and inaccessibility of other helping agencies Z76.2, Encounter for health supervision and care of other healthy infant and child Z99.12, Encounter for respirator [ventilator] dependence during power failure The external cause of morbidity codes and the Z codes listed above are not an all-inclusive list. Other codes may be applicable to the encounter based upon the documentation. Assign as many codes as necessary to fully explain each healthcare encounter. Since patient history information may be very limited, use any available documentation to assign the appropriate external cause of morbidity and Z codes.

Homelessness supports Z59.0- assignment

indicating the patient is experiencing homelessness would support assignment of a code from subcategory Z59.0-, Homelessness.

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)

Cite This Page

Reference Z59.0 with the canonical source and edition:

Z59.0 — Homelessness. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/Z59.0

Canonical URL: https://icd10codingpro.com/codes/Z59.0