2024 ICD-10-CM Diagnosis Code Z34.90

Encounter for supervision of normal pregnancy, unspecified, unspecified trimester

ICD-10-CM Code:
Z34.90
ICD-10 Code for:
Encntr for suprvsn of normal pregnancy, unsp, unsp trimester
Is Billable?
Yes - Valid for Submission
Code Navigator:

Code Classification

  • Factors influencing health status and contact with health services
    (Z00–Z99)
    • Persons encountering health services in circumstances related to reproduction
      (Z30-Z39)
      • Encounter for supervision of normal pregnancy
        (Z34)

Z34.90 is a billable diagnosis code used to specify a medical diagnosis of encounter for supervision of normal pregnancy, unspecified, unspecified trimester. 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.

The code Z34.90 is applicable to female patients aged 12 through 55 years inclusive. It is clinically and virtually impossible to use this code on a non-female patient outside the stated age range.

The code is commonly used in ob/gyn medical specialties to specify clinical concepts such as supervision of normal pregnancy.

Unspecified diagnosis codes like Z34.90 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Approximate Synonyms

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

  • Amniotic membranes normal
  • Amniotic membranes present
  • Antenatal - shared care
  • Antenatal amniocentesis
  • Antenatal care from consultant
  • Antenatal care from general practitioner
  • Antenatal care midwifery led
  • Antenatal care provider
  • Antenatal care provider
  • Antenatal care provider
  • Antenatal care provider
  • Cardiotochogram finding
  • Cervical cerclage suture absent
  • Cervix central
  • Cervix thin
  • Condition of fetal membrane
  • CTG reactivity - finding
  • Early stage of pregnancy
  • Fetal heart baseline pattern - finding
  • Fetal heart sounds loud
  • Fetal heart sounds present
  • Fetal movement strength - finding
  • Finding of arrangement of gravid uterus
  • Finding of arrangement of gravid uterus
  • Finding of arrangement of gravid uterus
  • Finding of arrangement of gravid uterus
  • Finding of arrangement of gravid uterus
  • Finding of cervical cerclage suture
  • Finding of completeness of membranes
  • Finding of device of cervix
  • Finding of fetal heart sounds
  • Finding of height of gravid uterus
  • Finding of number of membranes
  • Finding of passing of operculum
  • Finding of pattern of fetal movement
  • Finding of position of pregnancy
  • Finding of pulsation of cord
  • Finding of pulsation of cord
  • Finding of pulsation of cord through intact membranes
  • Finding of pulsation of cord through intact membranes
  • Finding of quantity of pregnancy
  • Finding of shape of pregnant abdomen
  • Finding of shape of pregnant abdomen
  • Finding of shape of pregnant abdomen
  • Finding of thickness of cervix
  • Finding of vaginal liquor
  • Finding related to placental secretion of chorionic gonadotropin
  • Fundal height equal to dates
  • Gravid uterus central
  • Gravid uterus deviated to left
  • Gravid uterus deviated to right
  • Gravid uterus normal
  • Gravid uterus present
  • Intact fetal membranes
  • Intact membranes
  • Intact membranes bulging through cervix
  • Intrauterine pregnancy
  • Low risk pregnancy
  • Membranes complete
  • No liquor observed vaginally
  • Normal endocrine system
  • Normal endocrine system function
  • Normal fetal heart baseline pattern
  • Normal hormone secretion
  • Normal placental secretion of chorionic gonadotropin
  • Normal position of gravid uterus
  • Normal position of uterus
  • Operculum not passed
  • Ovoid pregnant abdomen
  • Partially effaced cervix
  • Pelvis adequate for delivery
  • Placenta healthy
  • Pregnancy with certain dates
  • Pregnancy with uncertain dates
  • Pregnant uterus displaced laterally
  • Presentation of pregnancy
  • Pulsation of umbilical cord palpable through intact membrane
  • Pulsation umbilical cord not palp through intact membranes
  • Reactive CTG tracing
  • Ripe cervix
  • Rounded pregnant abdomen
  • Single pregnancy
  • Strong fetal movements
  • Transversely enlarged pregnant abdomen
  • Two placental membranes present
  • Umbilical cord normal
  • Uneffaced cervix
  • Uterus central
  • Uterus deviated to left
  • Uterus deviated to right
  • Volume of fetal heart sounds - finding
  • Volume of heart sounds - finding

Clinical Classification

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:

  • Maternity diagnoses - The Medicare Code Editor detects inconsistencies in maternity cases by checking a patient's age and any diagnosis on the patient's record. The maternity code edits apply to patients age ange is 9–64 years inclusive (e.g., diabetes in pregnancy, antepartum pulmonary complication).
  • Diagnoses for females only - The Medicare Code Editor detects inconsistencies between a patient’s sex and any diagnosis on the patient’s record, these edits apply to FEMALES only .
  • 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)

Z34.90 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 Z34.90 to ICD-9-CM

  • ICD-9-CM Code: V22.1 - Supervis oth normal preg
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education


Prenatal Care

Prenatal care is the health care you get while you are pregnant. It includes your checkups and prenatal testing. Prenatal care can help keep you and your baby healthy. It lets your health care provider spot health problems early. Early treatment can cure many problems and prevent others.

Your doctor or midwife will give you a schedule for your prenatal visits. If you are over 35 years old or your pregnancy is high risk because of health problems like diabetes or high blood pressure, your doctor or midwife will probably want to see you more often. You can also expect to see your health care provider more often as your due date gets closer.

Dept. of Health and Human Services Office on Women's Health


[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.