2024 ICD-10-CM Diagnosis Code Z79.890

Hormone replacement therapy

ICD-10-CM Code:
Z79.890
ICD-10 Code for:
Hormone replacement therapy
Is Billable?
Yes - Valid for Submission
Code Navigator:

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)
      • Long term drug therapy (Z79)
        (current)

Z79.890 is a billable diagnosis code used to specify a medical diagnosis of hormone replacement therapy. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024. 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.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Attends hormone replacement monitoring
  • Female to male transsexual person on hormone therapy
  • Female-to-male transsexual
  • Hormone replacement monitoring check done
  • Hormone replacement monitoring status
  • Hormone replacement monitoring status
  • Hormone replacement therapy bleed pattern - abnormal
  • Hormone replacement therapy bleed pattern - no bleeding
  • Hormone replacement therapy bleed pattern - not relevant
  • Hormone replacement therapy started
  • HRT side-effects
  • HRT: combined estrogen/progestogen
  • HRT: unopposed estrogen
  • Long-term current use of postmenopausal hormone replacement therapy
  • Long-term current use of steroid
  • Long-term current use of testosterone replacement therapy
  • Long-term current use of thyroid hormone replacement therapy
  • Male to female transsexual person on hormone therapy
  • Male-to-female transsexual
  • Menopause monitoring status
  • Menopause monitoring status
  • Menopause monitoring status
  • Menopause monitoring status
  • Menopause monitoring status
  • Menopause monitoring status
  • Menopause monitoring status
  • Transsexual
  • Transsexual
  • Years on hormone replacement therapy

Clinical Classification

Clinical Information

  • Estrogen Replacement Therapy

    the use of hormonal agents with estrogen-like activity in postmenopausal or other estrogen-deficient women to alleviate effects of hormone deficiency, such as vasomotor symptoms, dyspareunia, and progressive development of osteoporosis. this may also include the use of progestational agents in combination therapy.
  • Hormone Replacement Therapy

    therapeutic use of hormones to alleviate the effects of hormone deficiency.
  • 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 and reports errors in the coding of claims data. The following ICD-10-CM Code Edits are applicable to this code:

  • 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)

Z79.890 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 IndicatorReason for CodeCMS will pay the CC/MCC DRG?
YDiagnosis was present at time of inpatient admission.YES
NDiagnosis was not present at time of inpatient admission.NO
UDocumentation insufficient to determine if the condition was present at the time of inpatient admission.NO
WClinically undetermined - unable to clinically determine whether the condition was present at the time of inpatient admission.YES
1Unreported/Not used - Exempt from POA reporting. NO

Convert Z79.890 to ICD-9-CM

  • ICD-9-CM Code: V07.4 - Hormone replace postmeno

Patient Education


Hormone Replacement Therapy

Menopause is the time in a woman's life when her period stops. It is a normal part of aging. In the years before and during menopause, the levels of female hormones can go up and down. This can cause symptoms such as hot flashes, night sweats, pain during sex, and vaginal dryness. For some women, the symptoms are mild, and they go away on their own. Other women take hormone replacement therapy (HRT), also called menopausal hormone therapy, to relieve these symptoms. HRT may also protect against osteoporosis.

HRT is not for everyone. You should not use HRT if you:

  • Think that you are pregnant
  • Have problems with vaginal bleeding
  • Have had certain kinds of cancers
  • Have had a stroke or heart attack
  • Have had blood clots
  • Have liver disease

There are different types of HRT. Some have only one hormone, while others have two. Most are pills that you take every day, but there are also skin patches, vaginal creams, gels, and rings.

Taking HRT has some risks. For some women, hormone therapy may increase their chances of getting blood clots, heart attacks, strokes, breast cancer, and gallbladder disease. Certain types of HRT have a higher risk, and each woman's own risks can vary, depending upon her medical history and lifestyle. You and your health care provider need to discuss the risks and benefits for you. If you do decide to take HRT, it should be the lowest dose that helps and for the shortest time needed. You should check if you still need to take HRT every 3-6 months.

Food and Drug Administration


[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.