ICD-10-CM Tabular Index · Chapter 21 · FY 2026 Z59

Problems related to housing and economic circumstances (Z59) ICD-10-CM

The Z59 code range covers problems related to housing and economic circumstances with 33 ICD-10-CM diagnosis codes. 25 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.

✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026
33
Diagnosis Codes
25
Billable Codes
Z59
Code Range
Z55–Z65
Parent Section

Type 2 Excludes

A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

ICD-10-CM

Codes in the Z59 Range 33 codes · 25 billable

33 of 33 shown
  • Z59 Problems related to housing and economic circumstancesNon-billable
  • Z59.0 HomelessnessNon-billable
  • Z59.00 Homelessness unspecified
  • Z59.01 Sheltered homelessness
  • Z59.02 Unsheltered homelessness
  • Z59.1 Inadequate housingNon-billable
  • Z59.10 Inadequate housing, unspecified
  • Z59.11 Inadequate housing environmental temperature
  • Z59.12 Inadequate housing utilities
  • Z59.19 Other inadequate housing
  • Z59.2 Discord with neighbors, lodgers and landlord
  • Z59.3 Problems related to living in residential institution
  • Z59.4 Lack of adequate foodNon-billable
  • Z59.41 Food insecurity
  • Z59.48 Other specified lack of adequate food
  • Z59.5 Extreme poverty
  • Z59.6 Low income
  • Z59.7 Insufficient social insurance and welfare supportNon-billable
  • Z59.71 Insufficient health insurance coverage
  • Z59.72 Insufficient welfare support
  • Z59.8 Other problems related to housing and economic circumstancesNon-billable
  • Z59.81 Housing instability, housedNon-billable
  • Z59.811 Housing instability, housed, with risk of homelessness
  • Z59.812 Housing instability, housed, homelessness in past 12 months
  • Z59.819 Housing instability, housed unspecified
  • Z59.82 Transportation insecurity
  • Z59.86 Financial insecurityNon-billable
  • Z59.861 Financial insecurity, difficulty paying for utilities New
  • Z59.868 Other specified financial insecurity New
  • Z59.869 Financial insecurity, unspecified New
  • Z59.87 Material hardship due to limited financial resources, not elsewhere classified
  • Z59.89 Other problems related to housing and economic circumstances
  • Z59.9 Problem related to housing and economic circumstances, unspecified

Clinical Terms in This Code Range

Definitions from the National Library of Medicine for conditions coded in the Z59 range.

Bankruptcy

The state of legal insolvency with assets taken over by judicial process so that they may be distributed among creditors.

Food Insecurity

Limited or uncertain availability of nutritionally adequate and safe foods or limited or uncertain ability to acquire acceptable foods in safe and socially acceptable ways.

Housing Instability

This encompasses a number of challenges, such as having trouble paying rent, living in overcrowded conditions, moving frequently, living with friends or relatives out of necessity, being unhoused, or spending the bulk of household income (>50%) on housing. (https://www.healthypeople.gov/2020/topics-objectives/topic/social-determinants-health/interventions-resources/housing-instability)

Single Person

The unmarried man or woman.

About the Z59 Code Range

Z59 codes identify issues related to housing and economic circumstances, including homelessness, inadequate housing, food insecurity, poverty, and social insurance gaps. These codes help specify socio-economic conditions impacting a patient's well-being.

The ICD-10 code for problems such as homelessness includes specific categories for sheltered, unsheltered, and unspecified situations (e.g., Z59.00 covers homeless individuals like vagrants or social migrants). Inadequate housing codes (Z59.1) address problems like poor living conditions, environmental issues, or lack of utilities, with synonyms like "slum housing" and "lack of heat in house." Codes also cover discord with neighbors or landlords (Z59.2), challenges in residential institutions (Z59.3), and food insecurity (Z59.41), which refers to difficulty accessing sufficient nutrition. Economic hardship is coded with terms like extreme poverty (Z59.5), low income (Z59.6), and financial insecurity (Z59.86). Housing instability codes (Z59.81 series) reflect risk factors that could lead to homelessness. Medical coders use these codes to document social determinants affecting patient care and resource allocation precisely.

Questions About This Page

How many billable codes are in the Z59 range?

Of the 33 codes in this range, 25 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.

What does the Z59 range classify?

The range classifies problems related to housing and economic circumstances. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.

Related References

Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.