ICD-10 Code B80 – Enterobiasis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B80 – Enterobiasis
What it is
B80 identifies enterobiasis, an intestinal infection caused by pinworms. Use it when the record documents Enterobius vermicularis infection or pinworm infestation.
Clinical signs
Common findings include perianal itching, especially at night, disturbed sleep, and visible worms around the anus. Clinical features vary; refer to documentation.
When to use this code
Use B80 when the clinician documents enterobiasis, pinworm infection, or Enterobius vermicularis. It also fits confirmed or clinically diagnosed cases recorded in the chart. If the note only mentions itching without diagnosis, check documentation.
Do not use for
Do not use B80 for nonspecific abdominal symptoms, other helminth infections, or suspected infestation without documentation. Check documentation if the organism is not identified.
Coding tip
Code B80 only when the provider names enterobiasis or pinworm infection in the assessment.