2024 ICD-10-CM Diagnosis Code Z3A.00

Weeks of gestation of pregnancy not specified

ICD-10-CM Code:
Z3A.00
ICD-10 Code for:
Weeks of gestation of pregnancy not specified
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)
      • Weeks of gestation
        (Z3A)

Z3A.00 is a billable diagnosis code used to specify a medical diagnosis of weeks of gestation of pregnancy not specified. 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 Z3A.00 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.

Approximate Synonyms

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

  • Conjoined twin pregnancy
  • Disproportion between fetus and pelvis due to fetal neoplasm
  • Disproportion between fetus and pelvis due to fetal sacral teratoma
  • Early stage of pregnancy
  • Embryofetopathy caused by infection
  • Embryopathy caused by acitretin
  • Fetal disorder due to abnormal maternal blood chemistry
  • Fetal disorder due to and following amniocentesis
  • Fetal disorder due to and following fetal blood sampling
  • Fetal disorder due to and following operative procedure on fetus
  • Fetal disorder due to and following operative procedure on mother
  • Fetal disorder due to and following sampling of chorionic villus
  • Fetal disorder due to anomaly of placenta
  • Fetal disorder due to chorangioma of placenta
  • Fetal disorder due to chronic maternal cardiovascular disease
  • Fetal disorder due to chronic maternal respiratory disease
  • Fetal disorder due to maternal autoimmune disease
  • Fetal disorder due to maternal disorder of urinary tract
  • Fetal disorder due to maternal gestational edema and proteinuria without hypertension
  • Fetal disorder due to maternal hypertension
  • Fetal disorder due to maternal hypertension
  • Fetal disorder due to maternal nutritional disorder
  • Fetal disorder due to maternal obesity
  • Fetal disorder due to maternal obesity with adult body mass index 30 or greater but less than 40
  • Fetal disorder due to maternal obesity with adult body mass index equal to or greater than 40
  • Fetal disorder due to maternal overweight
  • Fetal disorder due to maternal periodontal disease
  • Fetal disorder due to maternal pre-eclampsia
  • Fetal disorder due to maternal renal disease
  • Fetal disorder due to maternal respiratory disease
  • Fetal disorder due to maternal traumatic injury
  • Fetal hemoglobinopathy
  • Fetal hemophilia
  • Fetal hypercapnia
  • Fetal neoplasm
  • Fetal sacral teratoma
  • Fetal thrombocytopenia
  • Finding of contents of cervix
  • Gestation 14 - 20 weeks
  • Gestation 9- 13 weeks
  • Gestation less than 20 weeks
  • Gestation less than 24 weeks
  • Hypercapnia
  • Low pressure headache
  • Lower limb of fetus palpable vaginally
  • Membrane at cervical os
  • Metabolic disorder of fetus
  • Neoplasm of uncertain behavior of sacrococcygeal region
  • Neoplasm of uncertain behavior of sacrum
  • Neoplasm of uncertain behavior of vertebral column
  • Post dural puncture headache
  • Pregnancy with implant contraceptive
  • Pregnancy with uncertain dates
  • Premature uterine contraction
  • Restless leg syndrome in pregnancy
  • Restless legs
  • Retinoid embryopathy
  • Sacrococcygeal teratoma
  • Scar of gravid uterus non-tender
  • Sleep related movement disorder
  • Spinal and epidural anesthesia-induced headache during pregnancy
  • Uterine contractions problem

Clinical Classification

Clinical Information

  • Hypercapnia

    a clinical manifestation of abnormal increase in the amount of carbon dioxide in arterial blood.

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)

Z3A.00 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 Z3A.00 to ICD-9-CM

  • ICD-9-CM Code: -
    No Map Flag -

Patient Education


Pregnancy

You're going to have a baby! It's an exciting time, but it can also feel a bit overwhelming. You may have a lot of questions, including what you can do to give your baby a healthy start. To keep you and your baby healthy during pregnancy, it is important to:

  • Have regular visits with your health care provider. These prenatal care visits help make sure that you and your baby are healthy. And if there are any health problems, your provider can find them early. Getting treatment right away can cure many problems and prevent others.
  • Eat healthy and drink plenty of water. Good nutrition during pregnancy includes eating a variety of
    • Fruits
    • Vegetables
    • Whole grains
    • Lean meats or other protein sources
    • Low-fat dairy products
  • Take prenatal vitamins. Pregnant women need higher amounts of certain vitamins and minerals, such as folic acid and iron.
  • Be careful with medicines. Always check with your health care provider before you start or stop any medicine. This includes over-the-counter medicines and dietary or herbal supplements.
  • Stay active. Physical activity can help you stay strong, feel and sleep better, and prepare your body for birth. Check with your provider about which types of activities are right for you.
  • Avoid substances that could hurt your baby, such as alcohol, drugs, and tobacco.

Your body will keep changing as your baby grows. It can be hard to know whether a new symptom is normal or could be a sign of a problem. Check with your health care provider if something is bothering or worrying you.


[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.