Q89.0 — Congenital absence and malformations of spleen
Q89.0 is a non-billable header ICD-10-CM code for congenital absence and malformations of spleen. 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.
- isomerism of atrial appendages (with asplenia or polysplenia) (Q20.6)
Other codes that can never be billed with Q89.0
These codes carry an Excludes1 note pointing at Q89.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Q89.0 alone.
Risk adjustment
Q89.0 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 history
Q89.0 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Code to one of these instead Q89.0
2 child codes. Green means billable.
Related codes at this level
Codes that share Q89. If Q89.0 is not quite right, the correct code is usually one of these.
Questions about Q89.0
- Is Q89.0 a billable ICD-10-CM code?
- No. Q89.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does Q89.0 sit in the tabular list?
- Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Other congenital malformations (Q80-Q89).
- What cannot be coded together with Q89.0?
- Q89.0 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter.