ICD-10 Code B96.81 – Helicobacter pylori [H. pylori] as the cause of diseases classified elsewhere (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B96.81 – Helicobacter pylori [H. pylori] as the cause of diseases classified elsewhere
What it is
B96.81 identifies H. pylori as the underlying infectious cause of another condition, not the primary diagnosis itself. You use it when the record links H. pylori to a separate disease such as gastritis or peptic ulcer disease.
Clinical signs
Clinical features vary; refer to documentation. Commonly documented findings include dyspepsia, epigastric pain, nausea, or evidence of gastritis or peptic ulcer disease with confirmed H. pylori infection.
When to use this code
Use this code when the provider documents H. pylori as the cause of a condition classified elsewhere. It is typically reported as an additional diagnosis with the related gastric or duodenal disorder. Check documentation for the causal relationship and the primary condition.
Do not use for
Do not use B96.81 for a history of H. pylori, suspected infection, or a condition not linked to the organism. If the record does not clearly connect H. pylori to another disease, check documentation.
Coding tip
Assign B96.81 only when the chart states H. pylori is the cause of another coded condition.