D80.5

✓ Billable

Immunodeficiency with increased immunoglobulin M [IgM]

Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)

✅ No additional coding notes for D80.5

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Code Information

CodeD80.5

BillableYes

ParentD80

CategoryDiseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)

Excludes10 rule(s)

Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)