K59.9
K59.9: Functional intestinal disorder, unspecified
Billable / specific codeICD-10-CM
K59.9 is a billable, specific ICD-10-CM code for functional intestinal disorder, unspecified. It is valid for submission on a claim.
Check K59.9 with the rest of the claim: free scrubberExcludes1 inherited from the categories above K59.9
A category’s note binds every code beneath it.
Excludes2 inherited from the categories above K59.9
Not part of this code, but both may be coded when both are present.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
K59.9 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56421Billing and Coding: CT of the Abdomen and Pelvis
Alphabetic index entries that lead here
- Complaint›bowel, functional
- Complaint›intestine, functional
- Distress›intestinal NOS(functional)
- Dysfunction›colon
- Dysfunction›rectum
- Upset›intestinal(large) (small)
- Disease, diseased›bowel›functional
- Disease, diseased›colon›functional
- Disease, diseased›gastrointestinal›functional
- Disease, diseased›intestine›functional
- Disorder›intestine, intestinal›functional NEC
- Syndrome›functional›bowel
Code history
Unchanged in every release from FY2024 to FY2027.