B05.1 — Measles complicated by meningitis
B05.1 is a billable, specific ICD-10-CM code for measles complicated by meningitis. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Postmeasles meningitis
Other codes that can never be billed with B05.1
These codes carry an Excludes1 note pointing at B05.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading B05.1 alone.
Risk adjustment
B05.1 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.
How B05.1 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 B05.1.
- Meningitis›postmeasles
- Measles›with›meningitis
- Meningitis›in›measles
Related codes at this level
Codes that share B05. If B05.1 is not quite right, the correct code is usually one of these.
Questions about B05.1
- Is B05.1 a billable ICD-10-CM code?
- Yes. B05.1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does B05.1 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).