ICD-10 Code B74.2 – Filariasis due to Brugia timori (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B74.2 – Filariasis due to Brugia timori
What it is
B74.2 identifies filarial infection caused by Brugia timori, a parasitic disease transmitted by mosquitoes. Use it for documented Brugia timori infection, not for unspecified filariasis.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings in lymphatic filariasis include recurrent fever, lymphatic inflammation, limb swelling, and chronic lymphedema.
When to use this code
Use B74.2 when the record specifically names Brugia timori as the cause of filariasis. This may appear in confirmed infectious disease assessments, problem lists, or discharge diagnoses. If the organism is not identified, check documentation for a more general filariasis code.
Do not use for
Do not use this code for other filarial infections, such as those caused by different Brugia or Wuchereria species. Also avoid it when the chart only says “filariasis” without identifying Brugia timori.
Coding tip
Code the organism exactly as documented; if the species is missing, verify whether a more specific or unspecified filariasis code is appropriate.