In simple words: This code is used for a doctor's visit to check on a healthy pregnancy when the stage of pregnancy (first, second, or third trimester) isn't known.

This ICD-10-CM code signifies an encounter for the supervision of a normal pregnancy where the specific trimester is not specified.It is used to classify visits for routine prenatal care in uncomplicated pregnancies.This code should only be used when there are no complications related to the pregnancy itself.If complications arise, appropriate codes from Chapter O00-O9A should be utilized instead.

Example 1: A 25-year-old woman at an unknown gestational age presents for her first routine prenatal visit.No complications are noted.Z34.9 is used., A 30-year-old woman, gestational age unknown, attends a routine prenatal checkup. Blood pressure, weight, and fetal heart rate are all within normal limits. Z34.9 is coded., A 35-year-old woman comes in for a prenatal visit; the exact trimester is unclear from the documentation.She reports no concerns or complications. Z34.9 is the appropriate code.

Documentation should include the date of the encounter, patient's gestational age (if known), vital signs, weight, fetal heart rate (if applicable), any medications, and a statement that no complications are present.

** This code is for encounters solely for the supervision of a normal pregnancy.It should not be used if the patient is experiencing any complications or has pre-existing conditions that affect the pregnancy.