Is A75 a billable ICD-10-CM code?

No. A75 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does A75 sit in the tabular list?

Certain infectious and parasitic diseases (A00-B99), in the block Rickettsioses (A75-A79).

What cannot be coded together with A75?

A75 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

A75

A75 — Typhus fever

Non-billable headerICD-10-CM

A75 is a non-billable header ICD-10-CM code for typhus fever. 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.

rickettsiosis due to Ehrlichia sennetsu (A79.81)

Risk adjustment

A75 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 A75

5 child codes. Green means billable.

Questions about A75

Is A75 a billable ICD-10-CM code?: No. A75 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does A75 sit in the tabular list?: Certain infectious and parasitic diseases (A00-B99), in the block Rickettsioses (A75-A79).
What cannot be coded together with A75?: A75 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.