B38.0 — Acute pulmonary coccidioidomycosis
B38.0 is a billable, specific ICD-10-CM code for acute pulmonary coccidioidomycosis. It is valid for submission on a claim.
Other codes that can never be billed with B38.0
These codes carry an Excludes1 note pointing at B38.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading B38.0 alone.
Risk adjustment
B38.0 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
B38.0 is named in 6 Medicare coverage policies — 6 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56717Billing and Coding: Respiratory Therapy (Respiratory Care)
- A57224Billing and Coding: Respiratory Care
- A57484Billing and Coding: Vitamin D Assay Testing
- A57718Billing and Coding: Vitamin D Assay Testing
How B38.0 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to B38.0.
- San Joaquin fever(Valley)
- Valley fever
- Desert›rheumatism
- Fever›desert
- Fever›San Joaquin(Valley)
- Fever›valley
- Coccidioidomycosis›pulmonary›acute
- Pneumonia›in›coccidioidomycosis›acute
Related codes at this level
Codes that share B38. If B38.0 is not quite right, the correct code is usually one of these.
Questions about B38.0
- Is B38.0 a billable ICD-10-CM code?
- Yes. B38.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does B38.0 sit in the tabular list?
- Certain infectious and parasitic diseases (A00-B99), in the block Mycoses (B35-B49).