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2007 ICD-9-CM Volume 1 Diagnosis Codes Home > Injury And Poisoning 800-999 > Complications Of Surgical And Medical Care, Not Elsewhere Classified 996-999 > Complications Of Medical Care Not Elsewhere Classified 999.* > 2007 ICD-9-CM Diagnosis 999.4 Anaphylactic shock due to serum not elsewhere classified  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 999.4 can be accessed here. 999.4 is a specific code that can be used to specify a diagnosis 999.4 contains 12 index entries View the ICD-9-CM Volume 1 999.* hierarchy 999.4 excludes: shock: allergic NOS (995.0) anaphylactic: NOS (995.0) due to drugs and chemicals (995.0) Index entries containing 999.4: Allergy, allergic (reaction) 995.3 anaphylactic shock 999.4 due to food - see Anaphylactic shock, due to, food serum (prophylactic) (therapeutic) 999.5 anaphylactic shock 999.4 shock (anaphylactic) (due to adverse effect of correct medicinal substance properly administered) 995.0 from serum or immunization 999.5 anaphylactic 999.4 Anaphylactic shock or reaction (correct substance properly administered) 995.0 due to immunization 999.4 serum 999.4 serum 999.4 Complications vaccination 999.9 anaphylaxis NEC 999.4 shock (allergic) (anaphylactic) 999.4 Reaction serum (prophylactic) (therapeutic) 999.5 immediate 999.4 Serum allergy, allergic reaction 999.5 shock 999.4 Shock 785.50 anaphylactic 995.0 immunization 999.4 serum 999.4