Is A28.2 a billable ICD-10-CM code?

Yes. A28.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does A28.2 sit in the tabular list?

Certain infectious and parasitic diseases (A00-B99), in the block Certain zoonotic bacterial diseases (A20-A28).

What cannot be coded together with A28.2?

A28.2 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

A28.2

A28.2 — Extraintestinal yersiniosis

Billable / specific codeICD-10-CM

A28.2 is a billable, specific ICD-10-CM code for extraintestinal yersiniosis. It is valid for submission on a claim.

Excludes1 — never code together

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

enteritis due to Yersinia enterocolitica (A04.6)
plague (A20.-)

Other codes that can never be billed with A28.2

These codes carry an Excludes1 note pointing at A28.2. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading A28.2 alone.

A04.6Enteritis due to Yersinia enterocolitica

Risk adjustment

A28.2 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.

How A28.2 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to A28.2.

Pseudotuberculosis
Sepsis›extraintestinal yersiniosis
Yersiniosis›extraintestinal
Infection, infected, infective›Yersinia›pseudotuberculosis

Related codes at this level

Codes that share A28. If A28.2 is not quite right, the correct code is usually one of these.

Questions about A28.2

Is A28.2 a billable ICD-10-CM code?: Yes. A28.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does A28.2 sit in the tabular list?: Certain infectious and parasitic diseases (A00-B99), in the block Certain zoonotic bacterial diseases (A20-A28).
What cannot be coded together with A28.2?: A28.2 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.