Adverse effect of immunoglobulin, subsequent encounter

This code signifies an undesirable or harmful reaction experienced by a patient due to the administration of immunoglobulin therapy, specifically during a subsequent encounter for this adverse effect. These reactions can range from mild, such as fever or rash, to severe, like anaphylaxis or renal dysfunction, occurring after the initial treatment.

Use this code when a patient presents for follow-up care, monitoring, or treatment of an adverse reaction that developed after receiving immunoglobulin. This applies to situations where the patient is no longer in the acute phase of the initial immunoglobulin administration but is still experiencing or being managed for its side effects.

• Always sequence this code after the code identifying the specific adverse effect (e.g., rash, anaphylaxis).
• Ensure documentation clearly indicates the adverse effect is related to immunoglobulin therapy and that it's a subsequent encounter.
• Do not use for adverse effects occurring during the initial administration; those would typically use an initial encounter seventh character.