Encounter for blood typing

This code signifies an encounter where a patient presents for the sole purpose of determining their blood type. This procedure identifies the specific ABO and Rh antigens present on the surface of their red blood cells. It is a routine laboratory test performed for various medical reasons.

Use this code when a patient is seen for pre-surgical screening, organ or tissue donation evaluation, or during pregnancy to assess for potential Rh incompatibility. It is also appropriate for individuals needing to know their blood type for personal records or emergency preparedness.

• Do not use this code if blood typing is performed as part of a more comprehensive pre-transfusion workup (e.g., crossmatch).
• Ensure documentation clearly states the reason for the blood typing encounter.
• This is a primary diagnosis code when blood typing is the main reason for the visit.