What was visible in the case record?
Housing instability, food insecurity, transportation barriers, family support gaps, legal context, or other documented conditions.
This page defines the first Z-code and upstream-driver domains used by The Accountability Record. The purpose is not to turn cases into billing data. The purpose is to keep the need, the evidence, and the response obligation visible.
A case should only say that a clinical Z code was assigned when a source shows that. Otherwise, TAR should say the case is mapped to a Z-code domain based on documented evidence.
This platform connects what happens in real cases to the larger systems and data used to measure them.
This is the codebook layer. Case-level Z-domain mapping and Need vs Response views will build on top of it.
Housing instability, food insecurity, transportation barriers, family support gaps, legal context, or other documented conditions.
The mapping helps group cases without claiming a clinical code was submitted.
Future case records can connect each mapped need to responsible agencies, programs, referrals, funding, and outcomes.
51 core TAR rows are included for early dashboards and case mapping. Contextual rows are kept separate when they are useful but not part of the core Z55-Z65 social-risk group.
Z55 Education and health literacy barriersBarriers involving literacy, school access, educational attainment, or health literacy.
Z55.5 Less than a high school diplomaEducational attainment may affect access to benefits, care navigation, and written instructions.
Z55.6 Health literacy barrierDifficulty understanding health information, care instructions, rights, or available services.
Z56 Employment and work instabilityBarriers involving unemployment, job loss risk, work conflict, or work conditions.
Z56.0 UnemploymentLoss or absence of employment connected to care access, income, or benefit instability.
Z56.2 Threat of job lossRisk of losing work because of illness, caregiving, missed appointments, or instability.
Z60 Social environment and isolationSocial isolation, living alone, exclusion, discrimination, acculturation difficulty, or other social-environment barriers.
Z60.2 Living alone with unmet support needLiving alone becomes relevant when it creates a documented risk or unmet need.
Z60.4 Social exclusion or rejectionExclusion from social, community, family, or service networks.
Z60.5 Discrimination or persecutionThe record shows adverse discrimination, persecution, or bias as a relevant condition.
Z58 Physical environment and basic service barriersEnvironmental conditions such as water, utilities, basic services, or unsafe physical surroundings.
Z58.6 Inadequate drinking waterLack of safe or adequate drinking water in the living environment.
Z58.81 Basic services unavailableEssential services in the living environment are unavailable or unreliable.
Z65.5 Exposure to disaster, war, or hostilitiesDisaster, war, or hostile-event exposure created health, displacement, trauma, or service needs.
Z59 Housing and economic instabilityHousing, food, transportation, insurance, welfare, poverty, income, and financial hardship barriers.
Z59.00 HomelessnessThe record shows homelessness but does not specify sheltered or unsheltered status.
Z59.01 Sheltered homelessnessTemporary shelter use, including emergency shelters or similar settings.
Z59.02 Unsheltered homelessnessLiving outside, in vehicles, encampments, abandoned buildings, or other places not meant for habitation.
Z59.10 Inadequate housingHousing exists but is not adequate for health, safety, disability, or recovery needs.
Z59.12 Inadequate housing utilitiesHousing lacks reliable utilities needed for health and safety.
Z59.3 Living in a residential institutionThe record shows that residential-institution living is relevant to the person's needs, risks, placement options, or discharge planning.
Z59.41 Food insecurityLack of reliable access to enough appropriate food.
Z59.48 Other lack of adequate foodFood access problem that is documented but not captured by food insecurity alone.
Z59.5 Extreme povertySevere poverty affecting health, safety, care access, or ability to meet basic needs.
Z59.6 Low incomeLimited income affecting access to health care, stability, transportation, food, or housing.
Z59.71 Insufficient health insuranceInsurance coverage is absent, inadequate, interrupted, or too limited for needed care.
Z59.72 Insufficient public benefit supportPublic benefit or welfare support was not enough, unavailable, delayed, or inaccessible.
Z59.811 Housed but at risk of homelessnessThe person has housing but is at risk of losing it.
Z59.812 Recent homelessness while currently housedThe person is currently housed but experienced homelessness in the past year.
Z59.82 Transportation insecurityLack of reliable transportation to care, services, pharmacy, court, work, shelter, or support.
Z59.86 Financial insecurityFinancial insecurity is a parent concept in FY 2026 and should be refined with a more specific child code when possible.
Z59.861 Financial insecurity: utilitiesDifficulty paying for utilities such as electricity, heating, cooling, water, or related basic services.
Z59.868 Other specified financial insecurityA specified financial insecurity not captured by utility-payment difficulty.
Z59.869 Financial insecurity, unspecifiedFinancial insecurity is documented but the specific type is not clear.
Z59.87 Material hardshipFinancial limits caused unmet basic material needs.
Z62 Child welfare and upbringing contextChild welfare custody, institutional upbringing, non-parental custody, abuse history, exploitation, or related childhood circumstances.
Z62.21 Child in welfare custodyThe child is in child welfare custody.
Z62.22 Institutional upbringingThe child has been raised or placed in an institutional setting.
Z62.23 Child in relative custodyThe child is in the custody of a relative who is not a parent.
Z62.813 Childhood forced labor or sexual exploitation historyThe record documents childhood forced labor or sexual exploitation history.
Z63 Family, caregiver, and primary support barriersFamily disruption, caregiver limits, dependent relatives, bereavement, or other primary support problems.
Z63.4 Loss of family memberFamily death or disappearance affected support, safety, decision-making, or stability.
Z63.5 Family disruptionFamily separation or divorce affected support, caregiving, custody, or stability.
Z63.6 Dependent relative needing careA dependent relative needs care at home, affecting caregiving capacity or household stability.
Z63.79 Stressful family or household eventA stressful family or household event affected stability, support, or follow-through.
Z63.8 Other primary support problemA specified support-system problem not captured by another Z63 code.
Z65 Legal, safety, and psychosocial circumstancesLegal system involvement, incarceration, release from prison, victimization, disaster exposure, war, or other psychosocial circumstances.
Z65.1 IncarcerationCurrent incarceration or detention is relevant to health, safety, access, or continuity of care.
Z65.2 Reentry after incarcerationReentry after incarceration created care, housing, benefits, or continuity needs.
Z65.3 Other legal circumstancesLegal circumstances affected care, safety, benefits, custody, access, or response.
Z65.4 Victim of crime or terrorismVictimization is relevant to health, safety, trauma, access, or protective response.
Z77.31 Exposure to Gulf War theaterDocumented contact with or suspected exposure to a Gulf War theater.
Z77.39 Exposure to other war theaterDocumented contact with or suspected exposure to a non-Gulf War theater.
The first codebook is based on CMS FY 2026 ICD-10-CM files and official coding guidance. The guidance still uses the term social determinants of health for Z55-Z65, while 2026 Medicare payment language also uses upstream driver(s) in some care-integration contexts.
TAR uses both terms carefully: Z-code domain for the official codebook relationship, and upstream driver when explaining the practical condition that should trigger a response.