Is B57 a billable ICD-10-CM code?

No. B57 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does B57 sit in the tabular list?

Certain infectious and parasitic diseases (A00-B99), in the block Protozoal diseases (B50-B64).

B57

B57 — Chagas' disease

Non-billable headerICD-10-CM

B57 is a non-billable header ICD-10-CM code for chagas' disease. It cannot be billed on its own: choose one of the more specific child codes below.

Includes

Conditions this code covers.

American trypanosomiasis
infection due to Trypanosoma cruzi

Other codes that can never be billed with B57

These codes carry an Excludes1 note pointing at B57. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading B57 alone.

I41Myocarditis in diseases classified elsewhere
K23Disorders of esophagus in diseases classified elsewhere
K59.3Megacolon, not elsewhere classified

Risk adjustment

B57 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 B57

6 child codes. Green means billable.

Questions about B57

Is B57 a billable ICD-10-CM code?: No. B57 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does B57 sit in the tabular list?: Certain infectious and parasitic diseases (A00-B99), in the block Protozoal diseases (B50-B64).