Enctr for antenat screen for raised alphafetoprotein level

This code signifies a patient encounter for antenatal screening specifically to detect elevated levels of alpha-fetoprotein (AFP) in the maternal serum. This screening is performed during pregnancy to assess the risk of certain fetal abnormalities, particularly neural tube defects.

Assign this code when a pregnant patient presents for a routine or targeted blood test to measure AFP levels as part of prenatal care. This applies to initial screening tests, not follow-up diagnostic procedures after an abnormal result.

• Do not use this code for diagnostic testing following an abnormal screening result; instead, code the reason for the diagnostic test.
• This code is for the screening encounter itself, not the finding of an elevated AFP level.
• Always sequence this code as a secondary diagnosis when another condition or routine prenatal care is the primary reason for the encounter.