ICD-10-CM > Z00-Z99 > Z55-Z65 > Z59 > Z59.1 Z59.1 Inadequate housing Non-Billable/Non-Specific Type 2 Excludes problems related to the natural and physical environment (Z77.1-) Codes Z59.10Inadequate housing, unspecifiedZ59.11Inadequate housing environmental temperatureZ59.12Inadequate housing utilitiesZ59.19Other inadequate housing