ICD-10-CM 2027
ICD-10 code for work environment effect
From the official ICD-10-CM alphabetic index entry “Effect, adverse › work environment”. Page updated September 29, 2026.
About coding work environment effect
The ICD-10-CM code for work environment effect is Z56.5 (Uncongenial work environment).
Within Z56 (problems related to employment and unemployment), Z56.5 is specifically for Uncongenial work environment. Related codes cover unemployment, unspecified (Z56.0), change of job (Z56.1), threat of job loss (Z56.2), stressful work schedule (Z56.3), discord with boss and workmates (Z56.4), other physical and mental strain related to work (Z56.6), other problems related to employment (Z56.8) and unspecified problems related to employment (Z56.9).
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 work environment effect ICD-10 codes
What is the ICD-10 code for work environment effect?
- Z56.5 — Uncongenial work environment.
Is Z56.5 billable?
- Yes. Z56.5 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z56.5 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 Z56.5 a CC or MCC?
- No. Z56.5 is neither a CC nor an MCC under MS-DRG v44.0.