In simple words: This code tells the doctor the pregnancy is between 10 and 19 weeks along.It's added to the patient's records to show how far along the pregnancy is.It's not the main reason for the visit to the doctor.

This ICD-10-CM code signifies that the patient's pregnancy is between 10 and 19 weeks of gestation.It is used to document the gestational age on the maternal record.This code should be used as a secondary diagnosis and is only to be used in conjunction with a primary diagnosis that describes the reason for the encounter.It should be coded first with an obstetric condition or encounter for delivery (O09-O60, O80-O82).

Example 1: A 32-year-old woman presents for a routine prenatal checkup at 15 weeks gestation.No complications are noted. Z3A.1 is coded as a secondary diagnosis., A 28-year-old pregnant woman at 12 weeks gestation is admitted to the hospital due to vaginal bleeding.Z3A.1 is coded as a secondary diagnosis along with the code representing the cause of the bleeding., A 40-year-old woman at 18 weeks gestation is seen in the office for a routine ultrasound. No issues detected. Z3A.1 is added as a secondary diagnosis.

Documentation should include the gestational age confirmed through ultrasound, last menstrual period, or other reliable methods.The documentation should also clearly specify the reason for the encounter.

** This code is used to track the progress of the pregnancy and should not be used in isolation.It should be supported by documentation reflecting the reason for the visit. If multiple Z3A codes are applicable, only one code may be reported.