Specific code 2014 ICD-9-CM Diagnosis Code 279.3
Unspecified immunity deficiency
  • Billable Code
  • Short description: Immunity deficiency NOS.
  • ICD-9-CM 279.3 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 279.3 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Acquired immunodeficiency
  • Congenital immunodeficiency disease
  • Immunodeficiency
  • Immunodeficiency disorder
  • Immunodeficiency w short limbed stature
  • Immunodeficiency, acquired
  • Lymphopenic agammaglobulinemia - short-limbed dwarfism syndrome
  • Secondary immune deficiency disorder
Clinical Information
  • A deficiency of immune response or a disorder characterized by deficient immune response.
  • A disorder in which the immune system is unable to mount an adequate immune response.
  • Deficiency of immune response or a disorder characterized by deficient immune response; classified as antibody (b cell), cellular (t cell), or combined immunodeficiency, or phagocytic dysfunction disorders.
  • Syndromes in which there is a deficiency or defect in the mechanisms of immunity, either cellular or humoral.
  • The decreased ability of the body to fight infection and disease.
  • The inability of the body to produce an immune response.
Convert to ICD-10-CM: 279.3 converts approximately to:
  • 2014 ICD-10-CM D84.9 Immunodeficiency, unspecified
ICD-9-CM Volume 2 Index entries containing back-references to 279.3:
  • Deficiency, deficient
  • Immunodeficiency 279.3
    • autosomal recessive, Swiss-type 279.2
    • severe combined (SCID) 279.2
    • to Rh factor
      • affecting management of pregnancy 656.1
    • X-linked, with increased IgM 279.05
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 279.3 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.