ICD-10-CM 2027
ICD-10 code for Unsheltered homelessness
From the official ICD-10-CM alphabetic index entry “Homelessness › unsheltered”. Page updated September 29, 2026.
About coding Unsheltered homelessness
The ICD-10-CM code for Unsheltered homelessness is Z59.02 (Unsheltered homelessness).
Within Z59.0 (homelessness), Z59.02 is specifically for Unsheltered homelessness. Related codes cover unspecified (Z59.00) and Sheltered homelessness (Z59.01).
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.
Common questions about Unsheltered homelessness ICD-10 codes
What is the ICD-10 code for Unsheltered homelessness?
- Z59.02 — Unsheltered homelessness.
Is Z59.02 billable?
- Yes. Z59.02 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z59.02 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 Z59.02 a CC or MCC?
- No. Z59.02 is neither a CC nor an MCC under MS-DRG v44.0.