2025 ICD-10-CM code Z36.5
Encounter for antenatal screening for isoimmunization.
Medical necessity for this code is based on the standard of care for prenatal care, which includes screening for conditions that could affect the health of the mother or fetus. Isoimmunization can lead to significant complications for the fetus, including anemia, jaundice, and even fetal death, making screening medically necessary.
The healthcare provider is responsible for performing or ordering the appropriate screening test (e.g. antibody screen), counseling the patient about the results and potential implications, and arranging for any necessary follow-up or treatment.
In simple words: This code is used when a pregnant woman has a visit with a healthcare provider for blood tests to check if her blood and her baby's blood are incompatible.
This code is used for encounters for antenatal screening for isoimmunization.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.This includes encounters for placental sample (taken vaginally).
Example 1: A pregnant woman in her second trimester has a routine visit with her obstetrician. An antibody screen is ordered to check for isoimmunization. The result is negative., A pregnant woman with a history of a previous pregnancy affected by Rh incompatibility is seen for an antenatal visit.A placental sample is taken vaginally to determine the fetal Rh blood type., A pregnant woman in her first trimester comes to the clinic for her initial prenatal visit. She is found to be Rh negative.She is counseled about the risk of isoimmunization and scheduled for follow-up antibody screening later in the pregnancy.
Documentation should include the reason for the encounter (antenatal screening for isoimmunization), the specific screening tests performed (e.g., antibody screen, placental sample), the results of the screening tests, and any counseling or recommendations provided to the patient.
** If a procedure is performed during the encounter for antenatal screening, a procedure code must accompany the Z36.5 code.
- Specialties:Obstetrics and Gynecology
- Place of Service:Office, Outpatient Hospital