2025 ICD-10-CM code Z3A.3
Weeks of gestation of pregnancy, weeks 30-39.
This code is used to track the progression of pregnancy and does not have specific medical necessity requirements. It is always used in conjunction with other codes that describe the reason for the encounter.
This code is used by healthcare providers involved in prenatal care, such as obstetricians, midwives, and family physicians.
In simple words: This code indicates that the pregnancy is between 30 and 39 weeks along.
Weeks of gestation of pregnancy, weeks 30-39. This code is used only on the maternal record to indicate the weeks of gestation, if known. Code first any obstetric condition or encounter for delivery (O09-O60, O80-O82).
Example 1: A pregnant woman at 32 weeks gestation presents for a routine prenatal checkup., A pregnant woman at 37 weeks gestation presents with contractions., A pregnant woman at 39 weeks gestation is scheduled for an induction of labor.
Documentation should include the estimated gestational age based on the last menstrual period, ultrasound findings, or clinical examination.
** Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed.
- Specialties:Obstetrics, Family Medicine, Midwifery
- Place of Service:Office, Inpatient Hospital, On Campus-Outpatient Hospital, Birthing Center