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D89.83

⚠ Non-billable (Header)

Cytokine release syndrome

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

⚠️ This is a category header code — not billable. Use a more specific child code below.

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📋 Code Instructions

  • • Code first: underlying cause, such as:
  • • Code first: complications following infusion, transfusion and therapeutic injection (T80.89-)
  • • Code first: complications of transplanted organs and tissue (T86.-)

Child Codes (6)

D89.831Cytokine release syndrome, grade 1D89.832Cytokine release syndrome, grade 2D89.833Cytokine release syndrome, grade 3D89.834Cytokine release syndrome, grade 4D89.835Cytokine release syndrome, grade 5D89.839Cytokine release syndrome, grade unspecified

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Code Information

CodeD89.83
BillableNo — Header code
ParentD89.8
CategoryDiseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
Excludes10 rule(s)
Excludes20 note(s)
Child codes6

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)