In simple words: This code is used when a pregnant woman has a blood test (antenatal screening) to check for a protein called alpha-fetoprotein.High levels of this protein might mean there's a problem with the baby's development. The doctor uses this code whether the test result is normal or shows a problem.

This code is used for an encounter for antenatal screening to detect elevated levels of maternal serum alpha-fetoprotein (MSAFP).MSAFP is a protein produced by the fetus.Elevated levels may indicate neural tube defects in the developing fetus or other abnormalities.This code should be used when the screening is performed, regardless of the result. A corresponding procedure code must be used if a procedure was performed during the encounter.

Example 1: A 30-year-old pregnant woman at 16 weeks gestation undergoes an MSAFP screening as part of routine prenatal care. The result is within normal limits.Z36.1 is used to code the encounter., A 25-year-old pregnant woman at 18 weeks gestation undergoes an MSAFP screening.The results show elevated MSAFP levels.Further testing is ordered to rule out neural tube defects. Z36.1 is used in addition to codes for the subsequent diagnostic testing and any other findings. , A 35-year-old pregnant woman undergoes an MSAFP screening at 15 weeks gestation.She also has an ultrasound to assess fetal anatomy at this visit.Both Z36.1 and the appropriate ultrasound codes will be used.

Documentation should include:* The date of the MSAFP screening.* The gestational age of the pregnancy at the time of screening.* The result of the MSAFP screening (elevated, normal, etc.).* Any further diagnostic testing or procedures done as a result of the screening.* Relevant medical history of the patient.

** This code is for the encounter for the screening itself, not for the interpretation of the results or any subsequent management.The results of the screening are coded separately if they lead to a diagnosis.