D89.839

D89.839: Cytokine release syndrome, grade unspecified

Billable / specific codeICD-10-CM

D89.839 is a billable, specific ICD-10-CM code for cytokine release syndrome, grade unspecified. It is valid for submission on a claim.

Check D89.839 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above D89.839

A category’s note binds every code beneath it.

Written on D89: Other disorders involving the immune mechanism, not elsewhere classified

hyperglobulinemia NOS (R77.1)
monoclonal gammopathy (of undetermined significance) (D47.2)

Excludes2 inherited from the categories above D89.839

Not part of this code, but both may be coded when both are present.

Written on D89: Other disorders involving the immune mechanism, not elsewhere classified

transplant failure and rejection (T86.-)

Risk adjustment

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

Medicare coverage

D89.839 is named in 4 Medicare coverage policies: 4 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A55717Billing and Coding: Lab: Flow Cytometry
A56464Billing and Coding: Flow Cytometry
A56718Billing and Coding: Intravenous Immunoglobulin (IVIG)
A57718Billing and Coding: Vitamin D Assay Testing

Alphabetic index entries that lead here

Syndrome›cytokine release

Code history

Unchanged in every release from FY2024 to FY2027.