B38.9

Coccidioidomycosis, unspecified

Billable FY2026 2025-10-01 → 2026-09-30

This is the unspecified option. 7 more specific codes sit alongside it. Worth checking whether the documentation supports one of them.

Exclusions 7 never code together

B35-B49block

Excludes2

hypersensitivity pneumonitis due to organic dust (J67.-)J67.-
mycosis fungoides (C84.0-)C84.0-

A00-B99chapter

Excludes1

certain localized infections - see body system-related chapters

Excludes2

carrier or suspected carrier of infectious disease (Z22.-)Z22.-
infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)O98.-
infectious and parasitic diseases specific to the perinatal period (P35-P39)P35-P39
influenza and other acute respiratory infections (J00-J22)J00-J22

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 2

A00-B99chapter

Includes

diseases generally recognized as communicable or transmissible

Use additional code

code to identify resistance to antimicrobial drugs (Z16.-)Z16.-

Index entries leading here 5

California
- disease B38.9
Coccidioidomycosis B38.9
Disease, diseased — see also Syndrome
- Posadas-Wernicke B38.9
- Wernicke-Posadas B38.9
Posadas-Wernicke disease B38.9
Wernicke-Posadas disease B38.9

Alongside this code 7 same parent — B38

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 coccidioidomycosis category

Medications 1

9 Coccidioidomycosis drugs

MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable: yes
Code set: FY2026
Parent: B38
Block: B35-B49
Siblings: 7

Present FY2024–FY2027.