2026 ICD-10-CM Diagnosis Code Z36.0Encounter for antenatal screening for chromosomal anomalies

ICD-10-CM Codes›Z00–Z99›Z30-Z39›Z36

ICD-10-CM Z36.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Z36.0 is a billable ICD-10-CM diagnosis code for encounter for antenatal screening for chromosomal anomalies. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 951. The code is restricted by the Medicare Code Editor to maternity cases (age 9 through 64) and exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Antenatal screening.

Code Identity

ICD-10-CM Code
Z36.0
Billable Status
Yes — Valid for Submission
Code Describes
Encounter for antenatal screening for chromosomal anomalies
Short Description
Encounter for antenatal screening for chromosomal anomalies
Same as the full description in the CMS dataset.
Parent Code
Z36
Encounter for antenatal screening of mother

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ30-Z39Persons encountering health services in circumstances related to reproduction
CategoryZ36Encounter for antenatal screening of mother
This CodeZ36.0Encounter for antenatal screening for chromosomal anomalies

Code EditsBilling

Medicare Code Editor checks that affect claim validity for Z36.0.

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).

Present on Admission (POA)Billing

Z36.0 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Persons encountering health services in circumstances related to reproduction (Z30-Z39).

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR PRG001
Antenatal screening
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Genetic Counseling

Genetic counseling provides information and support to people who have, or may be at risk for, genetic disorders. A genetic counselor meets with you to discuss genetic risks. The counseling may be for yourself or a family member. Or you may get it when you are planning or expecting a baby. You may follow up with genetic testing.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert Z36.0 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
V28.0 Screening-chromosom anom
Approximate The match is approximate rather than exact.

Code History & ChangesHistory

Replacement Z36.0 replaces the following previously assigned code(s):

  • Z36 - Encounter for antenatal screening of mother
FY 2019AddedAdded to the ICD-10-CM code setEffective October 1, 2018.
FY 2020–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Z36.0Overview

What is the ICD-10 code for encounter for antenatal screening for chromosomal anomalies?

The ICD-10-CM code for encounter for antenatal screening for chromosomal anomalies is Z36.0 (sometimes written as Z360). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Is Z36.0 (Encounter for antenatal screening of mother) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report encounter for antenatal screening for chromosomal anomalies on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does Z36.0 group to?

When encounter for antenatal screening for chromosomal anomalies is the principal diagnosis on an inpatient stay, it groups to MS-DRG 951 (other Factors Influencing Health Status), which carries a relative weight of 0.556. Higher weights mean higher Medicare reimbursement.

Who can Z36.0 be reported for?

The Medicare Code Editor checks encounter for antenatal screening for chromosomal anomalies against patient demographics: this code is intended for maternity cases (age 9 through 64). Claims outside these limits are flagged as inconsistent.

Is Z36.0 exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for encounter for antenatal screening for chromosomal anomalies on inpatient claims. The code appears in the Persons encountering health services in circumstances related to reproduction (Z30-Z39) range of the CMS exempt list.