ICD-10 Code K56.600 – Partial intestinal obstruction, unspecified as to cause (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K56.600 – Partial intestinal obstruction, unspecified as to cause
What it is
K56.600 identifies a partial blockage of the intestine when the cause is not specified. It means intestinal contents can still pass, but flow is reduced or impaired.
Clinical signs
Typical findings include abdominal pain, distention, nausea, vomiting, and decreased bowel movements. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly documents partial intestinal obstruction and does not identify a specific cause. It also fits when the provider describes an incomplete bowel obstruction without further detail. Check documentation if the note suggests a more specific mechanical, postoperative, or functional cause.
Do not use for
Do not use it for complete intestinal obstruction or for ileus unless the provider documents partial obstruction. Avoid this code if a more specific cause or site is documented.
Coding tip
Assign K56.600 only when the chart supports “partial” obstruction and no cause is stated.