Bacterial and viral infectious agents (B95-B97) ICD-10-CM
The B95–B97 section covers bacterial and viral infectious agents with 56 ICD-10-CM diagnosis codes, of which 46 are billable in fiscal year 2026. The section is organized into the 3 code ranges listed below.
- These categories are provided for use as supplementary or additional codes to identify the infectious agent(s) in diseases classified elsewhere.
Code Ranges in This Section 3 ranges · 56 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the B95–B97 Code Range
ICD-10 codes B95-B97 identify specific bacterial and viral infectious agents responsible for diseases classified elsewhere in the medical records. These codes are used to specify the exact microorganism, such as Streptococcus, Staphylococcus, Escherichia coli, adenovirus, coronavirus, and others, when they cause infection-related conditions documented under different primary diagnoses.
This code range covers bacterial species including B95 codes like Streptococcus group A (B95.0), associated with illnesses such as cellulitis and invasive streptococcal disease, Staphylococcus aureus (B95.6) distinguishing methicillin-susceptible (B95.61) from resistant strains (B95.62), and other bacteria like Mycoplasma pneumoniae (B96.0), Escherichia coli (B96.2), or Helicobacter pylori (B96.81) linked to gastric ulcers. The B97 codes focus on viral agents causing infections elsewhere, for example, Adenovirus (B97.0), Coronavirus including SARS-associated virus (B97.2), and retroviruses like HIV-2 (B97.35). Using synonyms such as "Streptococcus pyogenes infection" for B95.0 or "Human papillomavirus infection" for B97.7 aids coders in accurately linking clinical documentation to these infectious agent codes, ensuring precise infectious agent identification in patient records.
Questions About This Page
How many codes are in the B95-B97 range?
The B95-B97 range contains 56 ICD-10-CM diagnosis codes in FY 2026. 46 of them are billable, and the rest are category headers that organize the section.
What conditions does B95-B97 cover?
The range covers bacterial and viral infectious agents. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
