ICD-10-CM 2027
ICD-10 code for air conditioning lack of
From the official ICD-10-CM alphabetic index entry “Lack of › air conditioning”. Page updated September 29, 2026.
About coding air conditioning lack of
The ICD-10-CM code for air conditioning lack of is Z59.11 (Inadequate housing environmental temperature).
Within Z59.1 (inadequate housing), Z59.11 is specifically for inadequate housing environmental temperature. Related codes cover unspecified (Z59.10), utilities (Z59.12) and other inadequate housing (Z59.19).
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 air conditioning lack of ICD-10 codes
What is the ICD-10 code for air conditioning lack of?
- Z59.11 — Inadequate housing environmental temperature.
Is Z59.11 billable?
- Yes. Z59.11 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z59.11 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 Z59.11 a CC or MCC?
- No. Z59.11 is neither a CC nor an MCC under MS-DRG v44.0.