ICD-10 Code B95.1 – Streptococcus, group B, as the cause of diseases classified elsewhere (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B95.1 – Streptococcus, group B, as the cause of diseases classified elsewhere
What it is
This code identifies Group B Streptococcus as the infectious organism causing another condition. It is an additional code, not the main diagnosis, and you should pair it with the disease being treated.
Clinical signs
Clinical features vary; refer to documentation. Group B Streptococcus may be documented from culture or other microbiology results as the organism linked to the patient’s infection.
When to use this code
Use B95.1 when the record states Group B Streptococcus is the cause of a condition classified elsewhere, such as an infection diagnosis that needs an organism code. You should code the underlying disease first, then add this code to identify the pathogen.
Do not use it unless the documentation clearly connects Group B Streptococcus to the condition. Check documentation if the organism is only suspected, historical, or not specified as the cause.
Do not use for
Do not use this code as the principal diagnosis or for infections caused by other organisms. It is also not for colonization or screening without a documented disease.
Coding tip
Pair B95.1 with the underlying infection code only when the provider explicitly links Group B Streptococcus to the condition.