Is A22.1 a billable ICD-10-CM code?

Yes. A22.1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does A22.1 sit in the tabular list?

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

A22.1

A22.1 — Pulmonary anthrax

Billable / specific codeICD-10-CM

A22.1 is a billable, specific ICD-10-CM code for pulmonary anthrax. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Inhalation anthrax
Ragpicker's disease
Woolsorter's disease

Other codes that can never be billed with A22.1

These codes carry an Excludes1 note pointing at A22.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading A22.1 alone.

J17Pneumonia in diseases classified elsewhere

Risk adjustment

A22.1 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.

Medicare coverage

A22.1 is named in 10 Medicare coverage policies — 10 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A52466Nebulizers - Policy Article
A52466Nebulizers - Policy Article
A52466Nebulizers - Policy Article
A52466Nebulizers - Policy Article

How A22.1 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 A22.1.

Ragpicker's disease
Ragsorter's disease
Woolsorter's disease
Anthrax›inhalation
Anthrax›pulmonary
Anthrax›respiratory
Anthrax›with pneumonia
Disease, diseased›ragpicker's or ragsorter's
Disease, diseased›woolsorter's
Inhalation›anthrax
Pneumonia›anthrax
Pneumonia›in›anthrax

Related codes at this level

Codes that share A22. If A22.1 is not quite right, the correct code is usually one of these.

Questions about A22.1

Is A22.1 a billable ICD-10-CM code?: Yes. A22.1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does A22.1 sit in the tabular list?: Certain infectious and parasitic diseases (A00-B99), in the block Certain zoonotic bacterial diseases (A20-A28).