D83.1
✓ Billable
Common variable immunodeficiency with predominant immunoregulatory T-cell disorders
ICD-10-CM · FY2026 · Diseases of the Blood and Blood-Forming Organs
Code
D83.1
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Diseases of the Blood and Blood-Forming Organs
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code D83.1?
ICD-10-CM code D83.1 represents Common variable immunodeficiency with predominant immunoregulatory T-cell disorders. It is a billable diagnosis code in the Diseases of the Blood and Blood-Forming Organs chapter, effective October 1, 2025 – September 30, 2026.
Is D83.1 billable?
Yes. D83.1 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is D83.1 in?
D83.1 belongs to the Diseases of the Blood and Blood-Forming Organs chapter (D50–D89) of ICD-10-CM.
Related codes in the D83 category
D83
Common variable immunodeficiency
Non-billable
D83.0
Common variable immunodeficiency with predominant abnormalities of B-cell numbers and function
Billable
D83.2
Common variable immunodeficiency with autoantibodies to B- or T-cells
Billable
D83.8
Other common variable immunodeficiencies
Billable
D83.9
Common variable immunodeficiency, unspecified
Billable
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