Is B40.8 a billable ICD-10-CM code?

No. B40.8 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does B40.8 sit in the tabular list?

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

What cannot be coded together with B40.8?

B40.8 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above B40.8 (B40) and apply to it just the same.

B40.8

B40.8 — Other forms of blastomycosis

Non-billable headerICD-10-CM

B40.8 is a non-billable header ICD-10-CM code for other forms of blastomycosis. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 inherited from the categories above B40.8

These are not written on B40.8, but they bind it: a note on a category applies to every code beneath it. Billing B40.8 with anything listed here is a denial.

Written on B40 — Blastomycosis

Brazilian blastomycosis (B41.-)
keloidal blastomycosis (B48.0)

Risk adjustment

B40.8 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 history

B40.8 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Code to one of these instead B40.8

2 child codes. Green means billable.

Related codes at this level

Codes that share B40. If B40.8 is not quite right, the correct code is usually one of these.

Questions about B40.8

Is B40.8 a billable ICD-10-CM code?: No. B40.8 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does B40.8 sit in the tabular list?: Certain infectious and parasitic diseases (A00-B99), in the block Mycoses (B35-B49).
What cannot be coded together with B40.8?: B40.8 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above B40.8 (B40) and apply to it just the same.