K59.01 Slow transit constipation
ICD-10-CM · CMS code reference
Official ICD-10-CM description: Slow transit constipation
Coding notes
From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.
Excludes1
Not coded together with this code. The exception is when the two conditions are unrelated to each other.
- fecal impaction (K56.41)
- change in bowel habit NOS (R19.4)
- intestinal malabsorption (K90.-)
- psychogenic intestinal disorders (F45.8)
Excludes2
Not part of this code, but both can be coded when both are documented.
- incomplete defecation (R15.0)
- functional disorders of stomach (K31.-)
Related codes
K59.00Constipation, unspecified ICD-10-CMK59.02Outlet dysfunction constipation ICD-10-CMK59.03Drug induced constipation ICD-10-CMK59.04Chronic idiopathic constipation ICD-10-CMK59.09Other constipation ICD-10-CMK59.1Functional diarrhea ICD-10-CMK59.2Neurogenic bowel, not elsewhere classified ICD-10-CMK59.31Toxic megacolon ICD-10-CM
Common questions
Is K59.01 a billable code?
Yes. K59.01 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.