Is B37 a billable ICD-10-CM code?

No. B37 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does B37 sit in the tabular list?

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

What cannot be coded together with B37?

B37 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

B37

B37 — Candidiasis

Non-billable headerICD-10-CM

B37 is a non-billable header ICD-10-CM code for candidiasis. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

neonatal candidiasis (P37.5)

Includes

Conditions this code covers.

candidosis
moniliasis

Other codes that can never be billed with B37

These codes carry an Excludes1 note pointing at B37. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading B37 alone.

N16Renal tubulo-interstitial disorders in diseases classified elsewhere
N33Bladder disorders in diseases classified elsewhere
N37Urethral disorders in diseases classified elsewhere
N39.0Urinary tract infection, site not specified
N48.1Balanitis
N51Disorders of male genital organs in diseases classified elsewhere
N77.1Vaginitis, vulvitis and vulvovaginitis in diseases classified elsewhere
G02Meningitis in other infectious and parasitic diseases classified elsewhere

Risk adjustment

B37 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 B37

10 child codes. Green means billable.

Questions about B37

Is B37 a billable ICD-10-CM code?: No. B37 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does B37 sit in the tabular list?: Certain infectious and parasitic diseases (A00-B99), in the block Mycoses (B35-B49).
What cannot be coded together with B37?: B37 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.