D81.5

Severe combined immunodeficiency [SCID] with reticular dysgenesis

Severe combined immunodeficiency [SCID] with low T- and B-cell numbers

Severe combined immunodeficiency [SCID] with low or normal B-cell numbers

Adenosine deaminase [ADA] deficiency

Nezelof's syndrome

Major histocompatibility complex class I deficiency

Major histocompatibility complex class II deficiency

Other combined immunodeficiencies

Combined immunodeficiency, unspecified