ICD-10 Code K56 – Paralytic ileus and intestinal obstruction without hernia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K56 – Paralytic ileus and intestinal obstruction without hernia
What it is
K56 identifies paralysis or obstruction of the intestine when no hernia is the cause. It covers reduced bowel movement or a blockage within the bowel itself.
Clinical signs
Typical findings include abdominal distention, pain, nausea, vomiting, and decreased or absent bowel sounds. Clinical features vary; refer to documentation.
When to use this code
Use K56 when the provider documents paralytic ileus or intestinal obstruction and specifically excludes hernia as the cause. It is appropriate for documented mechanical or functional bowel obstruction within this category. If the record does not clearly identify the type or cause, check documentation.
Do not use for
Do not use K56 for obstruction caused by hernia, or when the chart supports a different specified intestinal disorder. Do not assume the diagnosis without provider documentation.
Coding tip
Code the documented cause and type of obstruction first, and verify that “without hernia” is supported in the record.