2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Endocrine, Nutritional And Metabolic Diseases, And Immunity Disorders 240-279 > Other Metabolic Disorders And Immunity Disorders 270-279 > Disorders Involving The Immune Mechanism 279.* > 2006 ICD-9-CM Diagnosis 279.8 Other specified disorders involving the immune mechanism View the most recent version of ICD-9-CM 279.8 279.8 is a specific code that can be used to specify a diagnosis 279.8 contains 6 index entries View the ICD-9-CM Volume 1 279.* hierarchy Alternate Terminology Single complement [C1-C9] deficiency or dysfunction  Index entries containing 279.8: Deficiency, deficient complement factor NEC 279.8 Depletion complement factor 279.8 Disorder - see also Disease immune mechanism (immunity) 279.9 single complement (C1-C9) 279.8 specified type NEC 279.8 single complement (C1-C9) 279.8 Hypocomplementemia 279.8