D81.2

Severe combined immunodeficiency [SCID] with reticular dysgenesis

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

Adenosine deaminase [ADA] deficiency

Nezelof's syndrome

Purine nucleoside phosphorylase [PNP] deficiency

Major histocompatibility complex class I deficiency

Major histocompatibility complex class II deficiency

Other combined immunodeficiencies

Combined immunodeficiency, unspecified