ICD-10-CM · Chapter 21 · Z00-Z99
Z36 Encounter for antenatal screening of mother
Includes
- 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.
Excludes 1 (cannot be coded together)
- 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
Excludes 2 (not included here)
- abnormal findings on antenatal screening of mother (O28.-)
- genetic counseling and testing (Z31.43-, Z31.5)
- routine prenatal care (Z34)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| Z36..0 | Encounter for antenatal screening for chromosomal anomalies | Yes |
| Z36..1 | Encounter for antenatal screening for raised alphafetoprotein level | Yes |
| Z36..2 | Encounter for other antenatal screening follow-up | Yes |
| Z36..3 | Encounter for antenatal screening for malformations | Yes |
| Z36..4 | Encounter for antenatal screening for fetal growth retardation | Yes |
| Z36..5 | Encounter for antenatal screening for isoimmunization | Yes |
| Z36..8 | Encounter for other antenatal screening | No |
| Z36..81 | Encounter for antenatal screening for hydrops fetalis | Yes |
| Z36..82 | Encounter for antenatal screening for nuchal translucency | Yes |
| Z36..83 | Encounter for fetal screening for congenital cardiac abnormalities | Yes |
| Z36..84 | Encounter for antenatal screening for fetal lung maturity | Yes |
| Z36..85 | Encounter for antenatal screening for Streptococcus B | Yes |
| Z36..86 | Encounter for antenatal screening for cervical length | Yes |
| Z36..87 | Encounter for antenatal screening for uncertain dates | Yes |
| Z36..88 | Encounter for antenatal screening for fetal macrosomia | Yes |
| Z36..89 | Encounter for other specified antenatal screening | Yes |
| Z36..8A | Encounter for antenatal screening for other genetic defects | Yes |
| Z36..9 | Encounter for antenatal screening, unspecified | Yes |
Plain-language term for this code
The following entry in the US Medical Glossary corresponds to ICD-10-CM category Z36:
- Fetal Monitoring — Monitoreo fetal
Last reviewed: September 2026