ICD-10 Code B74.4 – Mansonelliasis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B74.4 – Mansonelliasis
What it is
B74.4 identifies mansonelliasis, a parasitic infection caused by Mansonella species. Use it when the record documents this specific filarial infection.
Clinical signs
Clinical features vary; refer to documentation. Reported findings may include fever, skin itching, joint pain, or eosinophilia, but presentation can be mild or absent.
When to use this code
Use B74.4 when the provider diagnoses mansonelliasis or records Mansonella infection. It may also apply when the chart clearly links symptoms to this parasitic disease. If the organism is not specified, check documentation before coding.
Do not use for
Do not use this code for other filarial infections, such as loiasis or onchocerciasis. Also avoid it when the note only mentions suspected parasitic disease without confirmation.
Coding tip
Code the documented organism precisely; if the species is unclear, verify whether the record supports mansonelliasis specifically.