2025 ICD-10-CM code Z3A.4
Weeks of gestation of pregnancy, 40 weeks or greater.
This code is used to track gestational age and is not indicative of medical necessity on its own.The medical necessity for associated services or procedures should be documented separately.
Obstetricians, Gynecologists, Midwives, and other healthcare professionals providing prenatal care are responsible for documenting and coding the gestational age of pregnancy.
In simple words: This code indicates a pregnancy that has reached or surpassed 40 weeks.
This code is used to indicate a pregnancy at 40 weeks or more of gestation.It is used only on the maternal record.Code first any complications of pregnancy, childbirth, and the puerperium (O00-O9A).
Example 1: A pregnant woman presents for a routine prenatal checkup at 41 weeks gestation. The code Z3A.4 is used to indicate the gestational age., A woman at 40 weeks gestation is admitted to the hospital for induction of labor.Z3A.4 is used to record the pregnancy's gestational age., A pregnant woman is seen at 42 weeks gestation for a non-stress test. Z3A.4 is used in conjunction with the appropriate procedure code for the non-stress test.
Documentation of the gestational age, based on the last menstrual period, ultrasound findings, or other clinical data, is required. Any complications of the pregnancy should be coded separately.
** Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed.
- Specialties:Obstetrics and Gynecology, Family Medicine, Midwifery
- Place of Service:Office, Inpatient Hospital, Outpatient Hospital, Birthing Center