B01.2 — Varicella pneumonia
B01.2 is a billable, specific ICD-10-CM code for varicella pneumonia. It is valid for submission on a claim.
Other codes that can never be billed with B01.2
These codes carry an Excludes1 note pointing at B01.2. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading B01.2 alone.
- J17Pneumonia in diseases classified elsewhere
Risk adjustment
B01.2 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.
Medicare coverage
B01.2 is named in 3 Medicare coverage policies — 3 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56717Billing and Coding: Respiratory Therapy (Respiratory Care)
- A57205Billing and Coding: Oximetry Services
- A57224Billing and Coding: Respiratory Care
How B01.2 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 B01.2.
- Pneumonia›varicella
- Pneumonia›in›chickenpox
- Pneumonia›in›varicella
- Varicella›with›pneumonia
Related codes at this level
Codes that share B01. If B01.2 is not quite right, the correct code is usually one of these.
Questions about B01.2
- Is B01.2 a billable ICD-10-CM code?
- Yes. B01.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does B01.2 sit in the tabular list?
- Certain infectious and parasitic diseases (A00-B99), in the block Viral infections characterized by skin and mucous membrane lesions (B00-B09).