Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis. Exempt from present-on-admission (POA) reporting.
Applicable to
Pest infestation
Poor housing weatherization
Restriction of space
Technical defects in home preventing adequate care
Unsatisfactory surroundings
Applies from Z59 Problems related to housing and economic circumstances
Excludes2 (not included here)
problems related to upbringing (Z62.-)
Applies from Z59.1 Inadequate housing
Excludes2 (not included here)
problems related to the natural and physical environment (Z77.1-)
MS-DRG index
Defines the logic of DRG(s) 951 in MDC 23.
Medicare Code Edits (MCE v43.1 (April 2026))
Unacceptable principal diagnosis: These codes describe a circumstance which influences care but is not a current illness or injury, or capture only an underlying condition, and are unacceptable as principal diagnosis.
Code annotations containing back-references to Z59.19
Back-references to Z59
Type 2 Excludes: Z56 Problems related to employment and unemployment ("problems related to housing and economic circumstances (Z59.-)")
Type 2 Excludes: Z62 Problems related to upbringing ("problems related to housing and economic circumstances (Z59.-)")
Type 2 Excludes: Z72 Problems related to lifestyle ("problems related to socioeconomic and psychosocial circumstances (Z55-Z65)")
Type 2 Excludes: Z73 Problems related to life management difficulty ("problems related to socioeconomic and psychosocial circumstances (Z55-Z65)")
Diagnosis Index entries for Z59.19
Defect, defective › home, technical, preventing adequate care
Inadequate, inadequacy › household care, due to › technical defects in home
Inadequate, inadequacy › housing › space
Inadequate, inadequacy › housing › specified NEC
Infestation › pest
Person (with) › living (in) › without › adequate housing › space