Poisoning by gamma globulin

This code signifies an adverse effect or toxic reaction resulting from the administration of gamma globulin. It indicates that the patient has experienced a harmful physiological response to this blood product, rather than a therapeutic one. This could manifest as anaphylaxis, serum sickness, or other systemic reactions.

Use this code when documentation clearly states a patient suffered poisoning or an adverse reaction specifically due to gamma globulin administration. This typically occurs in scenarios such as intravenous immunoglobulin (IVIG) therapy or intramuscular immune globulin injections. Supporting documentation should detail the substance, the adverse effect, and the causal link.

• Differentiate from allergic reactions (e.g., 995.20-995.3) if the documentation specifies an allergic mechanism rather than a toxic effect.
• Always code the specific manifestation of the poisoning (e.g., anaphylactic shock, urticaria) as a primary diagnosis, with this code as a secondary diagnosis to identify the causative agent.
• Ensure documentation specifies "gamma globulin" and not a general "blood product" to accurately assign this specific code.