ICD-10 Code B88.3 – External hirudiniasis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B88.3 – External hirudiniasis
What it is
External hirudiniasis means infestation by leeches attached to the skin or body surface. Use this code when documentation identifies leech infestation rather than another parasite.
Clinical signs
Findings may include a visible leech attached to skin, local bleeding, or irritation at the bite site. Clinical features vary; refer to documentation.
When to use this code
Use B88.3 when the record clearly states external hirudiniasis, leech infestation, or leech attachment to the skin. It fits encounters for diagnosis, removal, or evaluation of the infestation when the condition is documented as the reason for care.
Do not use for
Do not use this code for other parasitic infestations, insect bites, or nonspecific skin irritation. If the note does not identify a leech infestation, check documentation.
Coding tip
Code the documented leech infestation itself, and verify any associated wound or bleeding diagnoses separately.