D83Common variable immunodeficiency

D83 is the ICD-10-CM diagnosis code for common variable immunodeficiency. It belongs to block D80-D89 (certain disorders involving the immune mechanism) and chapter 3 (diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism). It is a header code, so it can't be reported by itself; one of its 5 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: D83.0 (with predominant abnormalities of B-cell numbers and function), D83.1 (with predominant immunoregulatory T-cell disorders), D83.2 (with autoantibodies to B- or T-cells), D83.8 (immunodeficiencies) and D83.9 (unspecified).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.