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D82.9

D82.9: Immunodeficiency associated with major defect, unspecified

Billable / specific codeICD-10-CM

D82.9 is a billable, specific ICD-10-CM code for immunodeficiency associated with major defect, unspecified. It is valid for submission on a claim.

Check D82.9 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above D82.9

A category’s note binds every code beneath it.

Written on D82: Immunodeficiency associated with other major defects

  • ataxia telangiectasia [Louis-Bar] (G11.3)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

D82.9 is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56718Billing and Coding: Intravenous Immunoglobulin (IVIG)
  • A58963Billing and Coding: Multiplex Gastrointestinal Pathogen Panel (GPP) Tests for Acute Gastroenteritis (AGE)

Alphabetic index entries that lead here

  • Immunodeficiency›with›major defect

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under D82

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.