Z75.3 Unavailability and inaccessibility of health-care facilities

The ICD-10-CM code for Unavailability and inaccessibility of health-care facilities is Z75.3 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

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

Section

Z69-Z76: Persons encountering health services in other circumstances (Z69-Z76)

Category Z75

9 codes (8 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to Z75.3:

• Inaccessible, inaccessibility › health care NEC
• Unavailability (of) › medical facilities (at)
• Unavailability (of) › medical facilities (at) › outpatient clinic
• Unavailability (of) › medical facilities (at) › due to › remoteness from facility

U.S. Hospital Utilization

• An estimated 10,090 U.S. inpatient stays in 2023 included Z75.3 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.

Used with any code in range A00.0-T88.9, Z00-Z99

1) Used with any code in the range of A00.0-T88.9, Z00-Z99 An external cause code may be used with any code in the range of A00.0-T88.9, Z00-Z99, classification that represents a health condition due to an external cause. Though they are most applicable to injuries, they are also valid for use with such things as infections or diseases due to an external source, and other health conditions, such as a heart attack that occurs during strenuous physical activity.

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)