ICD-10 Code B42.8 – Other forms of sporotrichosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B42.8 – Other forms of sporotrichosis
What it is
B42.8 identifies sporotrichosis cases that do not fit the more specific ICD-10 categories. Use it for documented Sporothrix infection involving sites or forms other than the classic cutaneous pattern.
Clinical signs
Clinical features vary; refer to documentation. Sporotrichosis may present with localized nodules, ulceration, or spread beyond the skin, depending on the form recorded by the clinician.
When to use this code
Use B42.8 when the provider documents sporotrichosis but specifies an atypical, other, or not-otherwise-classified form. It is appropriate when the record supports Sporothrix infection and no more specific B42 code applies.
Choose this code only after reviewing the note for site and form details. If the documentation is unclear, check documentation before assigning a final code.
Do not use for
Do not use B42.8 for the common cutaneous form when a more specific sporotrichosis code is documented. Do not guess this code for fungal infections that are not sporotrichosis.
Coding tip
Match the code to the provider’s exact wording; if the record names a specific sporotrichosis form, code that instead of the unspecified “other” category.