Is B38 a billable ICD-10-CM code?

No. B38 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does B38 sit in the tabular list?

Certain infectious and parasitic diseases (A00-B99), in the block Mycoses (B35-B49).

B38

B38 — Coccidioidomycosis

Non-billable headerICD-10-CM

B38 is a non-billable header ICD-10-CM code for coccidioidomycosis. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with B38

These codes carry an Excludes1 note pointing at B38. 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 alone.

G02Meningitis in other infectious and parasitic diseases classified elsewhere
J17Pneumonia in diseases classified elsewhere
J99Respiratory disorders in diseases classified elsewhere

Risk adjustment

B38 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.

Code to one of these instead B38

8 child codes. Green means billable.

Questions about B38

Is B38 a billable ICD-10-CM code?: No. B38 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does B38 sit in the tabular list?: Certain infectious and parasitic diseases (A00-B99), in the block Mycoses (B35-B49).