Z-code domains

A codebook for mapping documented social needs to system response gaps.

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.

How TAR uses this

The codebook separates clinical coding from public accountability mapping.

Observed need

What was visible in the case record?

Housing instability, food insecurity, transportation barriers, family support gaps, legal context, or other documented conditions.

Mapped domain

Which Z-code domain does it align with?

The mapping helps group cases without claiming a clinical code was submitted.

Response gap

What should have happened next?

Future case records can connect each mapped need to responsible agencies, programs, referrals, funding, and outcomes.

Codebook

FY 2026 Z domains selected for TAR.

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.

Dashboard group

Education, work, and social environment

10 rows
Domain category | Not assignable; use as a grouping row

Z55 Education and health literacy barriers

Response-tracking priority

Barriers involving literacy, school access, educational attainment, or health literacy.

Official ICD-10-CM title
Problems related to education and literacy
TAR domain
Education and health literacy
Accountability use
Use when a case shows that education, literacy, or health-literacy barriers affected access, discharge planning, consent, follow-through, or safety.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Codebook note
Category row used for TAR dashboard grouping.
Specific code | Assignable when documented

Z55.5 Less than a high school diploma

Reference priority

Educational attainment may affect access to benefits, care navigation, and written instructions.

Official ICD-10-CM title
Less than a high school diploma
TAR domain
Education and health literacy
Accountability use
Use when source evidence directly connects educational attainment to a barrier, not merely as a demographic fact.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z55.6 Health literacy barrier

Response-tracking priority

Difficulty understanding health information, care instructions, rights, or available services.

Official ICD-10-CM title
Problems related to health literacy
TAR domain
Education and health literacy
Accountability use
Use when unclear communication, unreadable instructions, or poor explanation contributed to a response gap.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Domain category | Not assignable; use as a grouping row

Z56 Employment and work instability

Reference priority

Barriers involving unemployment, job loss risk, work conflict, or work conditions.

Official ICD-10-CM title
Problems related to employment and unemployment
TAR domain
Employment and work stability
Accountability use
Use when employment instability affected insurance, income, care access, caregiving, or ability to comply with a care plan.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Codebook note
Category row used for TAR dashboard grouping.
Specific code | Assignable when documented

Z56.0 Unemployment

Reference priority

Loss or absence of employment connected to care access, income, or benefit instability.

Official ICD-10-CM title
Unemployment, unspecified
TAR domain
Employment and work stability
Accountability use
Use when unemployment is part of the mechanism of harm or explains inability to obtain needed support.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z56.2 Threat of job loss

Reference priority

Risk of losing work because of illness, caregiving, missed appointments, or instability.

Official ICD-10-CM title
Threat of job loss
TAR domain
Employment and work stability
Accountability use
Use when threatened employment loss shaped the choices available to the person or family.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Domain category | Not assignable; use as a grouping row

Z60 Social environment and isolation

Response-tracking priority

Social isolation, living alone, exclusion, discrimination, acculturation difficulty, or other social-environment barriers.

Official ICD-10-CM title
Problems related to social environment
TAR domain
Social environment and isolation
Accountability use
Use when isolation, discrimination, lack of community support, or social exclusion shaped the harm or response gap.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Codebook note
Category row used for TAR dashboard grouping.
Specific code | Assignable when documented

Z60.2 Living alone with unmet support need

Response-tracking priority

Living alone becomes relevant when it creates a documented risk or unmet need.

Official ICD-10-CM title
Problems related to living alone
TAR domain
Social environment and isolation
Accountability use
Use when living alone affected discharge safety, monitoring, caregiving, food access, medication support, or emergency response.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Codebook note
Do not use merely because a person lives alone; the record should show a risk or unmet support need.
Specific code | Assignable when documented

Z60.4 Social exclusion or rejection

Response-tracking priority

Exclusion from social, community, family, or service networks.

Official ICD-10-CM title
Social exclusion and rejection
TAR domain
Social environment and isolation
Accountability use
Use when exclusion or rejection affected access to help, placement, follow-up, safety, or recovery.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z60.5 Discrimination or persecution

High response-tracking priority

The record shows adverse discrimination, persecution, or bias as a relevant condition.

Official ICD-10-CM title
Target of (perceived) adverse discrimination and persecution
TAR domain
Social environment and isolation
Accountability use
Use when discrimination or bias plausibly shaped access, response, credibility, treatment, transfer, placement, or outcomes.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Dashboard group

Safety, environment, and disaster exposure

4 rows
Domain category | Not assignable; use as a grouping row

Z58 Physical environment and basic service barriers

Response-tracking priority

Environmental conditions such as water, utilities, basic services, or unsafe physical surroundings.

Official ICD-10-CM title
Problems related to physical environment
TAR domain
Physical environment and basic services
Accountability use
Use when infrastructure or environmental conditions made care, recovery, safety, or stability harder.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Codebook note
Category row used for TAR dashboard grouping.
Specific code | Assignable when documented

Z58.6 Inadequate drinking water

Response-tracking priority

Lack of safe or adequate drinking water in the living environment.

Official ICD-10-CM title
Inadequate drinking-water supply
TAR domain
Physical environment and basic services
Accountability use
Use when water access or safety is relevant to health risk, discharge safety, public health response, or neglect.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z58.81 Basic services unavailable

Response-tracking priority

Essential services in the living environment are unavailable or unreliable.

Official ICD-10-CM title
Basic services unavailable in physical environment
TAR domain
Physical environment and basic services
Accountability use
Use for cases involving service deserts, infrastructure gaps, or missing supports needed for safe care outside an institution.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z65.5 Exposure to disaster, war, or hostilities

Reference priority

Disaster, war, or hostile-event exposure created health, displacement, trauma, or service needs.

Official ICD-10-CM title
Exposure to disaster, war and other hostilities
TAR domain
Legal, safety, and psychosocial context
Accountability use
Use when disaster or hostilities are part of the documented social context or response responsibility.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Dashboard group

Housing, transportation, food, and financial stability

21 rows
Domain category | Not assignable; use as a grouping row

Z59 Housing and economic instability

High response-tracking priority

Housing, food, transportation, insurance, welfare, poverty, income, and financial hardship barriers.

Official ICD-10-CM title
Problems related to housing and economic circumstances
TAR domain
Housing and economic stability
Accountability use
Use as the main TAR domain for discharge-to-street, unstable housing, food access, transportation access, and financial-response gaps.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Codebook note
Category row used for TAR dashboard grouping.
Specific code | Assignable when documented

Z59.00 Homelessness

High response-tracking priority

The record shows homelessness but does not specify sheltered or unsheltered status.

Official ICD-10-CM title
Homelessness unspecified
TAR domain
Housing and economic stability
Accountability use
Use when homelessness was known and the response did not secure a safe housing or placement plan.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z59.01 Sheltered homelessness

High response-tracking priority

Temporary shelter use, including emergency shelters or similar settings.

Official ICD-10-CM title
Sheltered homelessness
TAR domain
Housing and economic stability
Accountability use
Use when shelter placement was treated as adequate despite unresolved medical, behavioral, disability, or safety needs.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z59.02 Unsheltered homelessness

High response-tracking priority

Living outside, in vehicles, encampments, abandoned buildings, or other places not meant for habitation.

Official ICD-10-CM title
Unsheltered homelessness
TAR domain
Housing and economic stability
Accountability use
Use when discharge, denial, or system failure exposed a person to unsheltered conditions.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z59.10 Inadequate housing

High response-tracking priority

Housing exists but is not adequate for health, safety, disability, or recovery needs.

Official ICD-10-CM title
Inadequate housing, unspecified
TAR domain
Housing and economic stability
Accountability use
Use when housing quality or suitability is part of the harm mechanism or failed response.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z59.12 Inadequate housing utilities

High response-tracking priority

Housing lacks reliable utilities needed for health and safety.

Official ICD-10-CM title
Inadequate housing utilities
TAR domain
Housing and economic stability
Accountability use
Use when utilities, electricity, heat, cooling, refrigeration, or medical-device power affected safe care.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z59.3 Living in a residential institution

High response-tracking priority

The record shows that residential-institution living is relevant to the person's needs, risks, placement options, or discharge planning.

Official ICD-10-CM title
Problems related to living in residential institution
TAR domain
Housing and economic stability
Accountability use
Use when a residential institution, congregate setting, facility placement, or transition out of such a setting is part of the documented response gap. Do not use this merely because a facility appears in the record; connect it to the documented need or system responsibility.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Codebook note
Added after a new case suggested a residential-institution Z-code domain that was missing from the TAR codebook.
Specific code | Assignable when documented

Z59.41 Food insecurity

High response-tracking priority

Lack of reliable access to enough appropriate food.

Official ICD-10-CM title
Food insecurity
TAR domain
Housing and economic stability
Accountability use
Use when food access, nutrition support, meal delivery, or benefit access was known but not effectively addressed.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z59.48 Other lack of adequate food

Response-tracking priority

Food access problem that is documented but not captured by food insecurity alone.

Official ICD-10-CM title
Other specified lack of adequate food
TAR domain
Housing and economic stability
Accountability use
Use when the record shows a specific food-access issue, such as special diet access or meal-service failure.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z59.5 Extreme poverty

Response-tracking priority

Severe poverty affecting health, safety, care access, or ability to meet basic needs.

Official ICD-10-CM title
Extreme poverty
TAR domain
Housing and economic stability
Accountability use
Use when poverty is directly connected to unmet care, placement, benefits, or protective-service needs.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z59.6 Low income

Response-tracking priority

Limited income affecting access to health care, stability, transportation, food, or housing.

Official ICD-10-CM title
Low income
TAR domain
Housing and economic stability
Accountability use
Use when income limits are part of the documented barrier or response gap.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z59.71 Insufficient health insurance

High response-tracking priority

Insurance coverage is absent, inadequate, interrupted, or too limited for needed care.

Official ICD-10-CM title
Insufficient health insurance coverage
TAR domain
Housing and economic stability
Accountability use
Use when insurance barriers contributed to denial, delay, discharge failure, transfer refusal, or lack of follow-up.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z59.72 Insufficient public benefit support

High response-tracking priority

Public benefit or welfare support was not enough, unavailable, delayed, or inaccessible.

Official ICD-10-CM title
Insufficient welfare support
TAR domain
Housing and economic stability
Accountability use
Use when benefits, eligibility, or public support gaps left a documented need unresolved.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z59.811 Housed but at risk of homelessness

High response-tracking priority

The person has housing but is at risk of losing it.

Official ICD-10-CM title
Housing instability, housed, with risk of homelessness
TAR domain
Housing and economic stability
Accountability use
Use when eviction risk, unstable tenure, or loss of placement shaped the case response.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z59.812 Recent homelessness while currently housed

Response-tracking priority

The person is currently housed but experienced homelessness in the past year.

Official ICD-10-CM title
Housing instability, housed, homelessness in past 12 months
TAR domain
Housing and economic stability
Accountability use
Use when recent homelessness shows elevated risk during discharge, care planning, or service coordination.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z59.82 Transportation insecurity

High response-tracking priority

Lack of reliable transportation to care, services, pharmacy, court, work, shelter, or support.

Official ICD-10-CM title
Transportation insecurity
TAR domain
Housing and economic stability
Accountability use
Use when transportation barriers affected access, follow-up, safety checks, referrals, transfers, or continuity of care.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Parent category | Not assignable; use as a grouping row

Z59.86 Financial insecurity

High response-tracking priority

Financial insecurity is a parent concept in FY 2026 and should be refined with a more specific child code when possible.

Official ICD-10-CM title
Financial insecurity
TAR domain
Housing and economic stability
Accountability use
Use for dashboard grouping; prefer Z59.861, Z59.868, or Z59.869 when mapping a specific observed need.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Codebook note
FY 2026 converted Z59.86 from a specific code to a parent category.
Specific code | Assignable when documented

Z59.861 Financial insecurity: utilities

High response-tracking priority

Difficulty paying for utilities such as electricity, heating, cooling, water, or related basic services.

Official ICD-10-CM title
Financial insecurity, difficulty paying for utilities
TAR domain
Housing and economic stability
Accountability use
Use when utility costs or shutoff risk affected health, housing stability, medical equipment, refrigeration, or safe discharge.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Codebook note
New FY 2026 specificity under Z59.86.
Specific code | Assignable when documented

Z59.868 Other specified financial insecurity

High response-tracking priority

A specified financial insecurity not captured by utility-payment difficulty.

Official ICD-10-CM title
Other specified financial insecurity
TAR domain
Housing and economic stability
Accountability use
Use when the source identifies a specific financial stressor affecting care, placement, safety, or benefits.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Codebook note
New FY 2026 specificity under Z59.86.
Specific code | Assignable when documented

Z59.869 Financial insecurity, unspecified

Response-tracking priority

Financial insecurity is documented but the specific type is not clear.

Official ICD-10-CM title
Financial insecurity, unspecified
TAR domain
Housing and economic stability
Accountability use
Use when a source shows financial insecurity but does not identify the specific financial barrier.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Codebook note
New FY 2026 specificity under Z59.86.
Specific code | Assignable when documented

Z59.87 Material hardship

High response-tracking priority

Financial limits caused unmet basic material needs.

Official ICD-10-CM title
Material hardship due to limited financial resources, not elsewhere classified
TAR domain
Housing and economic stability
Accountability use
Use when a case shows inability to afford basic items, supplies, repairs, safety equipment, medical necessities, or daily living supports.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Dashboard group

Support, family, child welfare, and legal context

16 rows
Domain category | Not assignable; use as a grouping row

Z62 Child welfare and upbringing context

High response-tracking priority

Child welfare custody, institutional upbringing, non-parental custody, abuse history, exploitation, or related childhood circumstances.

Official ICD-10-CM title
Problems related to upbringing
TAR domain
Child welfare and upbringing context
Accountability use
Use when child-serving systems, custody, institutional placement, or childhood adversity are central to the case record.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Codebook note
Category row used for TAR dashboard grouping.
Specific code | Assignable when documented

Z62.21 Child in welfare custody

High response-tracking priority

The child is in child welfare custody.

Official ICD-10-CM title
Child in welfare custody
TAR domain
Child welfare and upbringing context
Accountability use
Use when state custody, foster care responsibility, placement availability, or child welfare coordination is part of the harm mechanism.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z62.22 Institutional upbringing

Response-tracking priority

The child has been raised or placed in an institutional setting.

Official ICD-10-CM title
Institutional upbringing
TAR domain
Child welfare and upbringing context
Accountability use
Use when institutional placement, congregate care, or facility-based upbringing is relevant to the documented harm.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z62.23 Child in relative custody

Response-tracking priority

The child is in the custody of a relative who is not a parent.

Official ICD-10-CM title
Child in custody of non-parental relative
TAR domain
Child welfare and upbringing context
Accountability use
Use when kinship care or relative custody shaped responsibility, service coordination, or support gaps.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z62.813 Childhood forced labor or sexual exploitation history

Response-tracking priority

The record documents childhood forced labor or sexual exploitation history.

Official ICD-10-CM title
Personal history of forced labor or sexual exploitation in childhood
TAR domain
Child welfare and upbringing context
Accountability use
Use only with strong source support, and connect it to system responsibility only when the case evidence makes that link.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Codebook note
Sensitive category; avoid exposing unnecessary personal detail.
Domain category | Not assignable; use as a grouping row

Z63 Family, caregiver, and primary support barriers

High response-tracking priority

Family disruption, caregiver limits, dependent relatives, bereavement, or other primary support problems.

Official ICD-10-CM title
Other problems related to primary support group, including family circumstances
TAR domain
Family, caregiver, and primary support
Accountability use
Use when the available support system, caregiver capacity, or family situation affected care, discharge, placement, or safety.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Codebook note
Category row used for TAR dashboard grouping.
Specific code | Assignable when documented

Z63.4 Loss of family member

Response-tracking priority

Family death or disappearance affected support, safety, decision-making, or stability.

Official ICD-10-CM title
Disappearance and death of family member
TAR domain
Family, caregiver, and primary support
Accountability use
Use when bereavement or loss of a support person is part of the documented vulnerability or response need.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z63.5 Family disruption

Reference priority

Family separation or divorce affected support, caregiving, custody, or stability.

Official ICD-10-CM title
Disruption of family by separation and divorce
TAR domain
Family, caregiver, and primary support
Accountability use
Use when family disruption helps explain an unmet support need or system responsibility.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z63.6 Dependent relative needing care

High response-tracking priority

A dependent relative needs care at home, affecting caregiving capacity or household stability.

Official ICD-10-CM title
Dependent relative needing care at home
TAR domain
Family, caregiver, and primary support
Accountability use
Use when caregiving responsibility or caregiver strain affected access, follow-up, discharge safety, or family capacity.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Codebook note
Use this domain for caregiver-strain mapping when the source does not support a more specific clinical code.
Specific code | Assignable when documented

Z63.79 Stressful family or household event

Response-tracking priority

A stressful family or household event affected stability, support, or follow-through.

Official ICD-10-CM title
Other stressful life events affecting family and household
TAR domain
Family, caregiver, and primary support
Accountability use
Use when a documented family or household event created a care or service-response need.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z63.8 Other primary support problem

Response-tracking priority

A specified support-system problem not captured by another Z63 code.

Official ICD-10-CM title
Other specified problems related to primary support group
TAR domain
Family, caregiver, and primary support
Accountability use
Use carefully for support-system problems such as caregiver limits, family conflict, or unsupported care needs when the source gives enough detail.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Codebook note
There is no FY 2026 Z63 code titled caregiver burnout in the official files reviewed.
Domain category | Not assignable; use as a grouping row

Z65 Legal, safety, and psychosocial circumstances

Response-tracking priority

Legal system involvement, incarceration, release from prison, victimization, disaster exposure, war, or other psychosocial circumstances.

Official ICD-10-CM title
Problems related to other psychosocial circumstances
TAR domain
Legal, safety, and psychosocial context
Accountability use
Use when courts, incarceration, public safety systems, disaster response, or victimization are part of the case context or system responsibility.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Codebook note
Category row used for TAR dashboard grouping.
Specific code | Assignable when documented

Z65.1 Incarceration

Response-tracking priority

Current incarceration or detention is relevant to health, safety, access, or continuity of care.

Official ICD-10-CM title
Imprisonment and other incarceration
TAR domain
Legal, safety, and psychosocial context
Accountability use
Use when jail, prison, detention, or custody status shaped access, treatment, discharge, or accountability.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z65.2 Reentry after incarceration

Response-tracking priority

Reentry after incarceration created care, housing, benefits, or continuity needs.

Official ICD-10-CM title
Problems related to release from prison
TAR domain
Legal, safety, and psychosocial context
Accountability use
Use when release planning, benefits restoration, medication continuity, housing, or follow-up failed after incarceration.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z65.3 Other legal circumstances

Response-tracking priority

Legal circumstances affected care, safety, benefits, custody, access, or response.

Official ICD-10-CM title
Problems related to other legal circumstances
TAR domain
Legal, safety, and psychosocial context
Accountability use
Use when legal status, court orders, guardianship, warrants, civil commitment, or other legal conditions are part of the response gap.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Specific code | Assignable when documented

Z65.4 Victim of crime or terrorism

Response-tracking priority

Victimization is relevant to health, safety, trauma, access, or protective response.

Official ICD-10-CM title
Victim of crime and terrorism
TAR domain
Legal, safety, and psychosocial context
Accountability use
Use when victimization shaped the need for protection, trauma care, relocation, advocacy, or institutional response.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Dashboard group

Contextual exposures outside core Z55-Z65 domains

2 rows
Contextual code | Assignable when documented

Z77.31 Exposure to Gulf War theater

Context only

Documented contact with or suspected exposure to a Gulf War theater.

Official ICD-10-CM title
Contact with and (suspected) exposure to Gulf War theater
TAR domain
Contextual exposures outside core SDOH
Accountability use
Keep outside the main Need vs Response dashboard unless a case specifically involves war-theater exposure and related response duties.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Codebook note
FY 2026 contextual Z-code addition; not part of the core Z55-Z65 SDOH group.
Contextual code | Assignable when documented

Z77.39 Exposure to other war theater

Context only

Documented contact with or suspected exposure to a non-Gulf War theater.

Official ICD-10-CM title
Contact with and (suspected) exposure to other war theater
TAR domain
Contextual exposures outside core SDOH
Accountability use
Keep outside the main Need vs Response dashboard unless a case specifically involves war-theater exposure and related response duties.
Evidence standard
Only present this as a clinically assigned code when a source documents the code. Otherwise describe the case as mapped to this Z-code domain based on visible case evidence.
Codebook note
FY 2026 contextual Z-code addition; not part of the core Z55-Z65 SDOH group.
Source and limits

What this codebook does and does not prove.

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.