2027 ICD-10-CM Diagnosis Code Z56.4Discord with boss and workmates

ICD-10-CM Codes›Z00–Z99›Z55-Z65›Z56

ICD-10-CM Z56.4
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

Z56.4 is a billable ICD-10-CM diagnosis code for discord with boss and workmates. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 951. The code is not accepted as a principal diagnosis by the Medicare Code Editor and exempt from POA reporting. Coders also document this condition as bullied at work. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Socioeconomic/psychosocial factors.

Code Identity

ICD-10-CM Code
Z56.4
Billable Status
Yes — Valid for Submission
Code Describes
Discord with boss and workmates
Short Description
Discord with boss and workmates
Same as the full description in the CMS dataset.
Parent Code
Z56
Problems related to employment and unemployment

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ55-Z65Persons with potential health hazards related to socioeconomic and psychosocial circumstances
CategoryZ56Problems related to employment and unemployment
This CodeZ56.4Discord with boss and workmates

Code EditsBilling

Medicare Code Editor checks that affect claim validity for Z56.4.

Unacceptable principal diagnosis
There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Present on Admission (POA)Billing

Z56.4 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Persons with potential health hazards related to socioeconomic and psychosocial circumstances (Z55-Z65).

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bullied at work
  • Discord in the workplace

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to Z56.4: its own notes plus those printed at Z56 and Chapter 21. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Z56 Problems related to employment and unemployment applies to 11 codes
  • occupational exposure to risk factors (Z57.-)
  • problems related to housing and economic circumstances (Z59.-)

Notes

General instructions on how these codes are used.

From Chapter 21 (Z00-Z99) Factors influencing health status and contact with health services applies to 1,425 codes
  • Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
  • (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
  • (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name Z56.4, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming Z56.4: they are not reported together with it, unless the two conditions are unrelated.

  • Z73.3 Stress, not elsewhere classified
    stress related to employment or unemployment (Z56.-) names Z56.-, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR FAC019
Socioeconomic/psychosocial factors
Default principal diagnosis: inpatient No · outpatient No

Patient EducationClinical

Occupational Health

Occupational health problems occur at work or because of the kind of work you do. These problems can include:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert Z56.4 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
V62.1 Adverse eff-work environ
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About Z56.4Overview

What is the ICD-10 code for discord with boss and workmates?

The ICD-10-CM code for discord with boss and workmates is Z56.4 (sometimes written as Z564). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is Z56.4 (Problems related to employment and unemployment) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report discord with boss and workmates on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does Z56.4 group to?

On inpatient claims, discord with boss and workmates maps to MS-DRG 951 (other Factors Influencing Health Status), which carries a relative weight of 0.5574. Higher weights mean higher Medicare reimbursement.

Can Z56.4 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because discord with boss and workmates describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.

Is Z56.4 exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for discord with boss and workmates on inpatient claims. The code appears in the Persons with potential health hazards related to socioeconomic and psychosocial circumstances (Z55-Z65) range of the CMS exempt list.