K90.8 — Other intestinal malabsorption
K90.8 is a non-billable header ICD-10-CM code for other intestinal malabsorption. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1 inherited from the categories above K90.8
These are not written on K90.8, but they bind it: a note on a category applies to every code beneath it. Billing K90.8 with anything listed here is a denial.
Other codes that can never be billed with K90.8
These codes carry an Excludes1 note pointing at K90.8. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading K90.8 alone.
Risk adjustment
K90.8 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
K90.8 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 K90.8
4 child codes. Green means billable.
Related codes at this level
Codes that share K90. If K90.8 is not quite right, the correct code is usually one of these.
Questions about K90.8
- Is K90.8 a billable ICD-10-CM code?
- No. K90.8 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does K90.8 sit in the tabular list?
- Diseases of the digestive system (K00-K95), in the block Other diseases of the digestive system (K90-K95).
- What cannot be coded together with K90.8?
- K90.8 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 K90.8 (K90) and apply to it just the same.