D89.8

D89.8: Other specified disorders involving the immune mechanism, not elsewhere classified

Non-billable headerICD-10-CM

D89.8 is a non-billable header ICD-10-CM code for other specified disorders involving the immune mechanism, not elsewhere classified. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 inherited from the categories above D89.8

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 D89.8

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.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead D89.8

5 child codes. Green means billable.