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  6. 2026 ICD-10-CM Code Z91.82

2026 ICD-10-CM Diagnosis Code Z91.82

Personal history of military deployment

ICD-10-CM Code:
Z91.82
ICD-10 Code for:
Personal history of military deployment
Is Billable?
Yes - Valid for Submission
Code Navigator:

Z91.82 is a billable diagnosis code used to specify a medical diagnosis of personal history of military deployment. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2025 through September 30, 2026. The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.

The code Z91.82 is applicable to adult patients aged 15 through 124 years inclusive. It is clinically and virtually impossible to use this code on a patient outside the stated age range.

Code Classification

  • Factors influencing health status and contact with health services
    Z00–Z99
    • Persons with potential health hazards related to family and personal history and certain conditions influencing health status
      Z77-Z99
      • Personal risk factors, not elsewhere classified
        Z91

Approximate Synonyms

The following list of clinical terms are approximate synonyms, alternative descriptions, or common phrases that might be used by patients, healthcare providers, or medical coders to describe the same condition. These synonyms and related diagnosis terms are often used when searching for an ICD-10 code, especially when the exact medical terminology is unclear. Whether you're looking for lay terms, similar diagnosis names, or common language alternatives, this list can help guide you to the correct ICD-10 classification.

  • Exposed to combat during military service
  • Gulf war syndrome
  • History of military deployment
  • Served in military service
  • Served in military service

Clinical Classification

Clinical Classifications group individual ICD-10-CM diagnosis codes into broader, clinically meaningful categories. These categories help simplify complex data by organizing related conditions under common clinical themes.

They are especially useful for data analysis, reporting, and clinical decision-making. Even when diagnosis codes differ, similar conditions can be grouped together based on their clinical relevance. Each category is assigned a unique CCSR code that represents a specific clinical concept, often tied to a body system or medical specialty.

Personal history of other disease

CCSR Code: FAC030

Inpatient Default: X - Not applicable.

Outpatient Default: Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Individual (civilian or military) with past history of military war, peacekeeping and humanitarian deployment (current or past conflict)
  • Returned from military deployment

Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • personal history of military service Z91.85

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Index of External Cause of Injuries

References found for this diagnosis code in the External Cause of Injuries Index:

    • Deployment(current) (military) status
      • personal history of
    • Deployment(current) (military) status
      • personal history of
        • military war, peacekeeping and humanitarian deployment (current or past conflict)
    • Deployment(current) (military) status
      • returned from
    • History
      • personal (of)
        • deployment (military)
    • History
      • personal (of)
        • military deployment
    • History
      • personal (of)
        • military war, peacekeeping and humanitarian deployment (current or past conflict)

Code Edits

The Medicare Code Editor (MCE) detects errors and inconsistencies in ICD-10-CM diagnosis coding that can affect Medicare claim validity. These Medicare code edits help medical coders and billing professionals determine when a diagnosis code is not appropriate as a principal diagnosis, does not meet coverage criteria. Use this list to verify whether a code is valid for Medicare billing and to avoid claim rejections or denials due to diagnosis coding issues.

Adult diagnoses

The Medicare Code Editor detects inconsistencies in adult cases by checking a patient's age and any diagnosis on the patient's record. The adult code edits apply to patients age range is 15–124 years inclusive (e.g., senile delirium, mature cataract).

View Edit

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.

View Edit

Present on Admission (POA)

Z91.82 is exempt from POA reporting - The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement. Review other POA exempt codes here.

CMS POA Indicator Options and Definitions

POA Indicator: Y

Reason: Diagnosis was present at time of inpatient admission.

CMS Pays CC/MCC DRG? YES

POA Indicator: N

Reason: Diagnosis was not present at time of inpatient admission.

CMS Pays CC/MCC DRG? NO

POA Indicator: U

Reason: Documentation insufficient to determine if the condition was present at the time of inpatient admission.

CMS Pays CC/MCC DRG? NO

POA Indicator: W

Reason: Clinically undetermined - unable to clinically determine whether the condition was present at the time of inpatient admission.

CMS Pays CC/MCC DRG? YES

POA Indicator: 1

Reason: Unreported/Not used - Exempt from POA reporting.

CMS Pays CC/MCC DRG? NO

Convert Z91.82 to ICD-9-CM

Below are the ICD-9 codes that most closely match this ICD-10 code, based on the General Equivalence Mappings (GEMs). This ICD-10 to ICD-9 crosswalk tool is helpful for coders who need to reference legacy diagnosis codes for audits, historical claims, or approximate code comparisons.

Hx-health hazards NEC

ICD-9-CM: V15.89

Approximate Flag - The approximate mapping means this ICD-10 code does not have an exact ICD-9 equivalent. The matched code is the closest available option, but it may not fully capture the original diagnosis or clinical intent.

View Conversion

Patient Education


Veterans and Military Health

Military service members and veterans have made sacrifices to our country, and they may face lots of different health issues. Some of the most common health problems they may have include chronic pain, sleep disorders, and mental health disorders.

But they may also face some different health risks than civilians. Serving to protect our country is a special job, and along with it comes some special risks and job hazards. These include different types of injuries and health problems from exposures.

What types of injuries do service members face?

During their service, members are at risk for various injuries. These injuries can happen during training or while in combat. Sometimes the injuries are life-threatening or serious enough to cause disability. Others may not be as serious, but they may be painful and can affect daily life.

Some of the specific types of injuries that service members may face include:

  • Sprains and strains, especially in the ankles and knees. These injuries are often caused by exercise and running.
  • Back and shoulder injuries, often from lifting and carrying.
  • Tinnitus and hearing loss, typically from exposure to noise.
  • Head injuries and traumatic brain injuries (TBIs).
  • Shrapnel and gunshot wounds.
  • Lost limbs.

What other special health problems do service members face?

There may also be a risk of health problems from exposure to environmental hazards, such as contaminated water, chemicals, infections, and burn pits. Sometimes the health problems caused by exposures don't develop until years later.

Some service members experience military sexual trauma (MST). This includes sexual assault and sexual harassment.

What mental health issues do service members and veterans face?

Being in combat and being separated from your family can be stressful. So can readjusting to civilian life after the military. All of this stress can put service members and veterans at risk for mental health problems, including:

  • Depression
  • Post-traumatic stress disorder (PTSD)
  • Anxiety
  • Alcohol and drug use disorders

There is also a risk of suicide. Veterans who are in crisis can get help from the Veteran's Crisis line by:

  • Calling 988 and then pressing 1
  • Texting to 838255
  • Chatting with them online

What health care services are available to service members and veterans?

There are health care services especially for service members and veterans through:

  • TRICARE, which is the Department of Defense's health care program. It has insurance plans and other services for uniformed service members, retirees, and their families around the world.
  • The Veterans Health Administration, which is part of the Department of Veterans Affairs (VA). It provides medical and social support services to eligible veterans.
  • The VA 's expanded health care and benefits for veterans exposed to burn pits, Agent Orange, and other toxic substances.

To better understand and treat the health needs of veterans in the future, the VA created the Million Veteran Program (MVP). This research program is looking at how genes, lifestyle, military experiences, and exposures affect health and wellness in veterans.


[Learn More in MedlinePlus]

Code History

  • FY 2026 - No Change, effective from 10/1/2025 through 9/30/2026
  • FY 2025 - No Change, effective from 10/1/2024 through 9/30/2025
  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.