ICD-10 Code K56.5 – Intestinal adhesions [bands] with obstruction (postinfection) (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K56.5 – Intestinal adhesions [bands] with obstruction (postinfection)
What it is
K56.5 identifies bowel obstruction caused by fibrous adhesions or bands, often after infection or inflammation. Use it when documentation shows the obstruction is due to adhesions rather than another mechanical cause.
Clinical signs
Typical findings include abdominal pain, distension, vomiting, constipation, and reduced passage of stool or gas. Imaging or operative notes may confirm obstructing adhesions; clinical features vary, refer to documentation.
When to use this code
Use this code when the record clearly states intestinal adhesions or bands are causing obstruction, including postinfectious adhesions. It may appear in surgical, emergency, or inpatient documentation when the clinician links the obstruction to adhesions. Check documentation if the cause is uncertain.
Do not use for
Do not use K56.5 for nonobstructive adhesions, paralytic ileus, or unspecified bowel obstruction. If the chart does not document adhesions as the cause, choose a more accurate obstruction code.
Coding tip
Code the obstruction only when the provider documents adhesions or bands as the cause; otherwise, query or select the documented obstruction type.