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  6. 2025 ICD-10-CM Code Z86.59

2025 ICD-10-CM Diagnosis Code Z86.59

Personal history of other mental and behavioral disorders

ICD-10-CM Code:
Z86.59
ICD-10 Code for:
Personal history of other mental and behavioral disorders
Is Billable?
Yes - Valid for Submission
Code Navigator:

Z86.59 is a billable diagnosis code used to specify a medical diagnosis of personal history of other mental and behavioral disorders. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2024 through September 30, 2025. The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.

This code describes a circumstance which influences the patient's health status but not a current illness or injury. The code is unacceptable as a principal diagnosis.

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 history of certain other diseases
        Z86

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.

  • H/O: anorexia nervosa
  • H/O: anxiety state
  • H/O: dementia
  • H/O: depression
  • H/O: depression
  • H/O: manic depressive disorder
  • H/O: psychiatric disorder
  • H/O: schizophrenia
  • History of agoraphobia
  • History of alcohol withdrawal delirium
  • History of alcohol withdrawal syndrome
  • History of attention deficit hyperactivity disorder
  • History of behavior problem
  • History of bulimia nervosa
  • History of confusion
  • History of delirium
  • History of dysthymia
  • History of eating disorder
  • History of eating disorder
  • History of emergence delirium
  • History of mood disorder
  • History of mood disorder
  • History of neurodevelopmental disorder
  • History of neurosis
  • History of post-operative complication of surgical procedure
  • History of postoperative delerium
  • History of post-traumatic stress disorder
  • History of psychotic disorder
  • History of psychotic disorder
  • History of threatening violent behavior toward others
  • History of violent behavior toward others
  • Repeated self-induced vomiting

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/family history of disease

CCSR Code: FAC021

Inpatient Default: X - Not applicable.

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

Clinical Information

  • Female-to-Male Transsexual Animal|Female-to-Male Transsexual

    an organism that was female at birth based on physical characteristics and has undergone hormonal therapy and/or surgical procedures in order to develop more male physical characteristics.

  • Female-to-Male Transsexual Phenotype|Female-to-Male Transsexual

    an individual who was female at birth based on physical characteristics and has undergone hormonal therapy and/or surgical procedures in order to develop more male physical characteristics.

  • Female-to-Male Transsexual|F-to-M|F2M|FTM|Female-to-Male Transsexual, Self-Report|TM|Trans Man|Transgender Male|Transgender male|Transman|Transsexual Male|Transsexual Man

    a person who was assigned to the female gender at birth based on physical characteristics but who self-identifies psychologically and emotionally as male.

  • Male-to-Female Transsexual Animal|Male-to-Female Transsexual

    an organism that was male at birth based on physical characteristics and has undergone hormonal therapy and/or surgical procedures in order to develop more female physical characteristics.

  • Male-to-Female Transsexual Phenotype|Male-to-Female Transsexual

    an individual who was male at birth based on physical characteristics and has undergone hormonal therapy and/or surgical procedures in order to develop more female physical characteristics.

  • Male-to-Female Transsexual|M-to-F|M2F|MTF|Male-to-Female Transsexual, Self-Report|TF|Trans Female|Trans Woman|Transgender Female|Transgender female|Transsexual Female|Transwoman

    a person who was assigned to the male gender at birth based on physical characteristics but who self-identifies psychologically and emotionally as female.

  • Transsexual

    a person who was assigned to one gender at birth based on physical characteristics but who self-identifies psychologically and emotionally as the other.

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).

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.

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)

Z86.59 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 Z86.59 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-mental disorder NEC

ICD-9-CM: V11.8

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

Hx-mental disorder NOS

ICD-9-CM: V11.9

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


Mental Disorders

What are mental disorders?

Mental disorders (or mental illnesses) are conditions that affect your thinking, feeling, mood, and behavior. They may happen over a short period of time or come and go. Some can be chronic (long-lasting). They can affect your ability to relate to others and function each day..

What are some types of mental disorders?

There are many different types of mental disorders. Some common ones include:

  • Anxiety disorders, including panic disorder, obsessive-compulsive disorder, and phobias
  • Depression, bipolar disorder, and other mood disorders
  • Eating disorders
  • Personality disorders
  • Post-traumatic stress disorder (PTSD)
  • Psychotic disorders, including schizophrenia

What causes mental disorders?

There is no single cause for mental illness. A number of factors can contribute to risk for mental illness, such as:

  • Your genes and family history
  • Your life experiences, such as stress or a history of abuse, especially if they happen in childhood
  • Biological factors such as chemical imbalances in the brain
  • A traumatic brain injury (TBI)
  • Prenatal (before birth) exposure to viruses, toxic chemicals, or other substances such as alcohol and drugs.
  • Use of alcohol or recreational drugs
  • Having a serious medical condition like cancer
  • Having few friends, and feeling lonely or isolated

Mental disorders are not caused by character flaws. They have nothing to do with being lazy or weak.

Who is at risk for mental disorders?

Mental disorders are common. Many Americans will be diagnosed with a mental disorder at some time in their life.

How are mental disorders diagnosed?

The steps to getting a diagnosis include:

  • A medical history
  • A physical exam and possibly lab tests, if your provider thinks that other medical conditions could be causing your symptoms
  • A psychological evaluation. You will answer questions about your thinking, feelings, and behaviors.

What are the treatments for mental disorders?

Treatment depends on which mental disorder you have and how serious it is. You and your provider will work on a treatment plan just for you. It usually involves some type of therapy. You may also take medicines. Some people also need social support and education on managing their condition.

In some cases, you may need more intensive treatment. You may need to go to a psychiatric hospital. This could be because your mental illness is severe. Or it could be because you are at risk of hurting yourself or someone else. In the hospital, you will get counseling, group discussions, and activities with mental health professionals and other patients.


[Learn More in MedlinePlus]

Code History

  • 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.