D80.5
✓ Billable
Immunodeficiency with increased immunoglobulin M [IgM]
ICD-10-CM · FY2026 · Diseases of the Blood and Blood-Forming Organs
Code
D80.5
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 D80.5?
ICD-10-CM code D80.5 represents Immunodeficiency with increased immunoglobulin M [IgM]. 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 D80.5 billable?
Yes. D80.5 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is D80.5 in?
D80.5 belongs to the Diseases of the Blood and Blood-Forming Organs chapter (D50–D89) of ICD-10-CM.
Related codes in the D80 category
D80
Immunodeficiency with predominantly antibody defects
Non-billable
D80.0
Hereditary hypogammaglobulinemia
Billable
D80.1
Nonfamilial hypogammaglobulinemia
Billable
D80.2
Selective deficiency of immunoglobulin A [IgA]
Billable
D80.3
Selective deficiency of immunoglobulin G [IgG] subclasses
Billable
D80.4
Selective deficiency of immunoglobulin M [IgM]
Billable
D80.6
Antibody deficiency with near-normal immunoglobulins or with hyperimmunoglobulinemia
Billable
D80.7
Transient hypogammaglobulinemia of infancy
Billable
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