Coccidioidomycosis (B38) ICD-10-CM
The B38 code range covers coccidioidomycosis with 11 ICD-10-CM diagnosis codes. 9 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Codes in the B38 Range 11 codes · 9 billable
- B38 CoccidioidomycosisNon-billable
- B38.0 Acute pulmonary coccidioidomycosis
- B38.1 Chronic pulmonary coccidioidomycosis
- B38.2 Pulmonary coccidioidomycosis, unspecified
- B38.3 Cutaneous coccidioidomycosis
- B38.4 Coccidioidomycosis meningitis
- B38.7 Disseminated coccidioidomycosis
- B38.8 Other forms of coccidioidomycosisNon-billable
- B38.81 Prostatic coccidioidomycosis
- B38.89 Other forms of coccidioidomycosis
- B38.9 Coccidioidomycosis, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the B38 range.
Coccidioidal Meningitis
Meningitis caused by a fungus of the genus COCCIDIOIDES, endemic to the SOUTHWESTERN UNITED STATES, south-central Washington State, and parts of Mexico and Central and South America.
Coccidioidomycosis
Infection with a fungus of the genus COCCIDIOIDES, endemic to the SOUTHWESTERN UNITED STATES. It is sometimes called valley fever but should not be confused with RIFT VALLEY FEVER. Infection is caused by inhalation of airborne, fungal particles known as arthroconidia, a form of FUNGAL SPORES. A primary form is an acute, benign, self-limited respiratory infection. A secondary form is a virulent, severe, chronic, progressive granulomatous disease with systemic involvement. It can be detected by use of COCCIDIOIDIN.
About the B38 Code Range
ICD-10 code B38 and its subclasses correspond to diagnoses related to coccidioidomycosis, a fungal infection caused by Coccidioides species. These codes distinguish between different forms of the disease affecting the lungs, skin, central nervous system, and other organs.
The ICD-10 code B38 broadly covers coccidioidomycosis, with subcodes increasing specificity. For example, B38.0 identifies acute pulmonary coccidioidomycosis, often referred to as acute pneumonia caused by Coccidioides immitis, whereas B38.1 applies to chronic pulmonary coccidioidomycosis, synonymous with chronic coccidioidomycotic pneumonia. Code B38.3 is used for cutaneous coccidioidomycosis, involving skin or subcutaneous tissue infection. When the infection spreads to the brain, B38.4 indicates coccidioidomycosis meningitis, a type of fungal meningitis. Disseminated forms affecting multiple organs are coded as B38.7. Other less common manifestations, such as prostatic infection (B38.81) or involvement of joints, bones, or eyes (B38.89), have their respective codes. The unspecified or general diagnosis without clear localization is captured by B38.9. These ICD-10 codes for coccidioidomycosis help accurately document the infection's location and severity for clinical and billing purposes.
Questions About This Page
How many billable codes are in the B38 range?
Of the 11 codes in this range, 9 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the B38 range classify?
The range classifies coccidioidomycosis. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
