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B35.4 — Tinea corporis
B35.4
What this code means
Ringworm of the body: a fungal skin infection causing itchy, ring-shaped patches.
Also called: tinea corporis, ringworm.
When this code is used
Used for tinea (ringworm) of the body.
Where it sits in ICD-10-CM
Code B35.4 belongs to Chapter 1: Infectious and parasitic diseases, which covers codes A00–B99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.
Related symptoms
Watch: related videos
Frequently asked questions
What is ICD-10-CM code B35.4?
B35.4 is the ICD-10-CM diagnosis code for “Tinea corporis”. Ringworm of the body: a fungal skin infection causing itchy, ring-shaped patches.
When is code B35.4 used?
Used for tinea (ringworm) of the body. It belongs to Chapter 1 of ICD-10-CM (Infectious and parasitic diseases).
This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.