ICD-10 Code K31.84 – Gastroparesis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K31.84 – Gastroparesis
What it is
Gastroparesis is delayed stomach emptying without a mechanical blockage. You use this code when documentation identifies impaired gastric motility causing retained food or slow transit.
Clinical signs
Common findings include early satiety, nausea, vomiting, bloating, and upper abdominal fullness. Clinical features vary; refer to documentation and any testing that supports delayed gastric emptying.
When to use this code
Use K31.84 when the provider documents gastroparesis or delayed gastric emptying as the diagnosis. It may also apply when symptoms are linked to confirmed gastric motility disorder and no obstruction is present. Check documentation if the cause is specified.
Do not use for
Do not use this code for gastric outlet obstruction, ileus, or nonspecific nausea and vomiting alone. If the record does not confirm gastroparesis, code the documented symptom or condition instead.
Coding tip
Look for wording such as “gastroparesis,” “delayed gastric emptying,” or “gastric dysmotility” and confirm that obstruction has been ruled out.