ICD-10 Code K56.601 – Complete intestinal obstruction, unspecified as to cause (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K56.601 – Complete intestinal obstruction, unspecified as to cause
What it is
K56.601 identifies a complete blockage of the intestine when the cause is not specified. It means intestinal contents cannot pass normally, and the record does not name a more exact underlying reason.
Clinical signs
Typical findings include abdominal distension, crampy pain, vomiting, and inability to pass stool or gas. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents complete intestinal obstruction and does not identify the cause. It also fits cases where the chart confirms obstruction but the etiology remains unspecified after evaluation. You should code the documented condition as written.
Do not use for
Do not use this code for partial obstruction, paralytic ileus, or bowel obstruction with a documented cause that has a more specific code. Check documentation if the record states a different site or etiology.
Coding tip
Confirm that “complete” and “unspecified as to cause” are both documented before assigning K56.601.