Is I89.9 a billable ICD-10-CM code?

Yes. I89.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does I89.9 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 I89.9?

I89.9 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above I89.9 (I89) and apply to it just the same.

I89.9

I89.9 — Noninfective disorder of lymphatic vessels and lymph nodes, unspecified

Billable / specific codeICD-10-CM

I89.9 is a billable, specific ICD-10-CM code for noninfective disorder of lymphatic vessels and lymph nodes, unspecified. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Disease of lymphatic vessels NOS

Excludes1 inherited from the categories above I89.9

These are not written on I89.9, but they bind it: a note on a category applies to every code beneath it. Billing I89.9 with anything listed here is a denial.

Written on I89 — Other noninfective disorders of lymphatic vessels and lymph nodes

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

Risk adjustment

I89.9 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.

How I89.9 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to I89.9.

Disease, diseased›gland(lymph)
Disease, diseased›lymphatic(gland) (system) (channel) (vessel)

Code history

I89.9 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share I89. If I89.9 is not quite right, the correct code is usually one of these.

Questions about I89.9

Is I89.9 a billable ICD-10-CM code?: Yes. I89.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does I89.9 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 I89.9?: I89.9 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above I89.9 (I89) and apply to it just the same.