ICD-10 Code B83.3 – Syngamiasis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B83.3 – Syngamiasis
What it is
Syngamiasis is an infection caused by Syngamus species, typically a parasitic worm. Use this code when documentation identifies this specific helminth infection.
Clinical signs
Clinical features vary; refer to documentation. Reported findings may include respiratory symptoms or evidence of parasitic infection, but the coded diagnosis should match the clinician’s stated identification.
When to use this code
Use B83.3 when the provider documents syngamiasis by name, or when records clearly identify Syngamus infection. It may appear in infectious disease, parasitology, or travel-related evaluations. If the organism is not specified, check documentation before assigning this code.
Do not use for
Do not use this code for nonspecific helminth infection or for a different parasite diagnosis. If the chart only says “worm infection” or the species is unclear, code the documented condition instead.
Coding tip
Confirm the exact parasite name in the note before coding, because B83.3 is for a specific documented infection.