Encounter for antenatal screening of mother (Z36) ICD-10-CM
The Z36 code range covers encounter for antenatal screening of mother with 19 ICD-10-CM diagnosis codes. 17 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- Encounter for placental sample (taken vaginally)
- Screening is the testing for disease or disease precursors in asymptomatic individuals so that early detection and treatment can be provided for those who test positive for the disease.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- diagnostic examination- code to sign or symptom
- encounter for suspected maternal and fetal conditions ruled out Z03.7
- suspected fetal condition affecting management of pregnancy - code to condition in Chapter 15
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Codes in the Z36 Range 19 codes · 17 billable
- Z36 Encounter for antenatal screening of motherNon-billable
- Z36.0 Encounter for antenatal screening for chromosomal anomalies
- Z36.1 Encounter for antenatal screening for raised alphafetoprotein level
- Z36.2 Encounter for other antenatal screening follow-up
- Z36.3 Encounter for antenatal screening for malformations
- Z36.4 Encounter for antenatal screening for fetal growth retardation
- Z36.5 Encounter for antenatal screening for isoimmunization
- Z36.8 Encounter for other antenatal screeningNon-billable
- Z36.81 Encounter for antenatal screening for hydrops fetalis
- Z36.82 Encounter for antenatal screening for nuchal translucency
- Z36.83 Encounter for fetal screening for congenital cardiac abnormalities
- Z36.84 Encounter for antenatal screening for fetal lung maturity
- Z36.85 Encounter for antenatal screening for Streptococcus B
- Z36.86 Encounter for antenatal screening for cervical length
- Z36.87 Encounter for antenatal screening for uncertain dates
- Z36.88 Encounter for antenatal screening for fetal macrosomia
- Z36.89 Encounter for other specified antenatal screening
- Z36.8A Encounter for antenatal screening for other genetic defects
- Z36.9 Encounter for antenatal screening, unspecified
About the Z36 Code Range
These encounters involve screening during pregnancy for concerns involving the mother or fetus.
The subdivisions distinguish what the screening looks for, such as chromosome differences, differences in fetal development, or slowed fetal growth. Z36.2 identifies other screening follow-up. The Z36.8 branch separates other screening purposes, including fetal lung maturity, cervical length, and uncertain pregnancy dates. Z36.9 identifies screening without a specified purpose.
Questions About This Page
How many billable codes are in the Z36 range?
Of the 19 codes in this range, 17 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the Z36 range classify?
The range classifies encounter for antenatal screening of mother. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
