ICD-10-CM 2027
ICD-10 code for housing lack of
From the official ICD-10-CM alphabetic index entry “Lack of › housing (permanent) (temporary)”. Page updated September 29, 2026.
About coding housing lack of
The ICD-10-CM code for housing lack of is Z59.00 (Homelessness unspecified). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on Z59.00.
Within Z59.0, choose Z59.00 (unspecified) only when documentation doesn't support a more specific option: Sheltered homelessness (Z59.01) and Unsheltered homelessness (Z59.02).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 951 (Other Factors Influencing Health Status, relative weight 0.5577), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific housing lack of codes (official index)
- adequate Z59.10 — Inadequate housing, unspecified
Common questions about housing lack of ICD-10 codes
What is the ICD-10 code for housing lack of?
- Z59.00 — Homelessness unspecified. More specific codes apply when the documentation supports them: Z59.10.
What is the ICD-10 code for adequate housing lack of?
- Z59.10 — Inadequate housing, unspecified.
Is Z59.00 billable?
- Yes. Z59.00 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z59.00 be used as a principal diagnosis?
- No. It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.
Is Z59.00 a CC or MCC?
- No. Z59.00 is neither a CC nor an MCC under MS-DRG v44.0.