Is I89 a billable ICD-10-CM code?

No. I89 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does I89 sit in the tabular list?

Diseases of the circulatory system (I00-I99), in the block Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified (I80-I89).

What cannot be coded together with I89?

I89 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

I89

I89 — Other noninfective disorders of lymphatic vessels and lymph nodes

Non-billable headerICD-10-CM

I89 is a non-billable header ICD-10-CM code for other noninfective disorders of lymphatic vessels and lymph nodes. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

chylocele, tunica vaginalis (nonfilarial) NOS (N50.89)
enlarged lymph nodes NOS (R59.-)
filarial chylocele (B74.-)
hereditary lymphedema (Q82.0)

Other codes that can never be billed with I89

These codes carry an Excludes1 note pointing at I89. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading I89 alone.

L03.91Acute lymphangitis, unspecified
D76Other specified diseases with participation of lymphoreticular and reticulohistiocytic tissue

Risk adjustment

I89 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead I89

4 child codes. Green means billable.

Questions about I89

Is I89 a billable ICD-10-CM code?: No. I89 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does I89 sit in the tabular list?: Diseases of the circulatory system (I00-I99), in the block Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified (I80-I89).
What cannot be coded together with I89?: I89 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.