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B38.0

Billable

Acute pulmonary coccidioidomycosis

HCC Category Mapping

V24HCC 115Pneumococcal Pneumonia, Empyema, Lung Abscess
0.339
ESRDHCC 115Pneumococcal Pneumonia, Empyema, Lung Abscess
0.000

What This Code Means

A fungal lung infection caused by Coccidioides that develops suddenly with acute symptoms.

Coding Tips

  • Distinguish between acute and chronic presentations as they have different codes
  • Document whether the patient has respiratory symptoms like cough, fever, or chest pain

Clinical Significance

Acute pulmonary coccidioidomycosis (Valley Fever) is an endemic mycosis prevalent in the southwestern United States and Central America. It represents an active, acute fungal pneumonia that requires distinct coding from chronic forms, as the clinical course, treatment intensity, and resource utilization differ significantly.

Documentation Requirements

  • Positive coccidioidomycosis serology (IgM or IgG antibodies) or culture confirmation
  • Chest imaging findings (infiltrates, nodules, pleural effusion)
  • Acute onset of symptoms: fever, cough, chest pain, fatigue with defined timeline
  • Geographic exposure history to endemic areas (Southwest US, Mexico, Central/South America)
  • Documentation that this is a new/acute infection, not chronic or reactivation

Commonly Confused Codes

Code Hierarchy

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