K59 — Other functional intestinal disorders
K59 is a non-billable header ICD-10-CM code for other functional intestinal disorders. 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.
Excludes2 — not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
- functional disorders of stomach (K31.-)
Other codes that can never be billed with K59
These codes carry an Excludes1 note pointing at K59. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading K59 alone.
Risk adjustment
K59 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 K59
7 child codes. Green means billable.
Questions about K59
- Is K59 a billable ICD-10-CM code?
- No. K59 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does K59 sit in the tabular list?
- Diseases of the digestive system (K00-K95), in the block Other diseases of intestines (K55-K64).
- What cannot be coded together with K59?
- K59 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.