ICD-10 Code B38.89 – Other forms of coccidioidomycosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B38.89 – Other forms of coccidioidomycosis
What it is
B38.89 identifies coccidioidomycosis that does not fit a more specific site or manifestation category. Use it for documented Valley fever presentations when the record describes another form of the infection.
Clinical signs
Clinical features vary; refer to documentation. Patients may have respiratory or disseminated findings consistent with coccidioidomycosis, but the chart must support the “other forms” designation.
When to use this code
Use this code when the provider documents coccidioidomycosis and does not specify a more precise ICD-10-CM option. It is appropriate for atypical or mixed presentations that are still clearly identified as coccidioidal infection. If the note names a specific organ or complication, code that more specific diagnosis instead.
Do not use for
Do not use B38.89 when documentation supports a more specific coccidioidomycosis code, such as pulmonary or meningeal disease. Also avoid it if the diagnosis is only suspected, ruled out, or not clearly documented.
Coding tip
Read the provider’s wording carefully and code the most specific coccidioidomycosis form documented.