Raised antibody titer

This code signifies an elevated level of antibodies detected in a patient's blood serum, indicating an immune response. It represents a laboratory finding that may suggest an active infection, prior exposure to an antigen, or an autoimmune process.

Use this code when laboratory results specifically document a "raised antibody titer" or "elevated antibody level" without a more specific diagnosis. This is often seen in serological testing for infectious diseases (e.g., Lyme disease, Epstein-Barr virus) or in the workup for autoimmune conditions when the specific disease is not yet confirmed.

• Do not use this code if a definitive diagnosis related to the elevated titer is established (e.g., active Lyme disease).
• Ensure documentation clearly states "raised" or "elevated" antibody titer; normal or negative results do not warrant this code.
• Always sequence this code after any definitive diagnosis if the elevated titer is a manifestation of that condition.