B96.21Billable
Shiga toxin-producing Escherichia coli [E. coli] [STEC] O157 as the cause of diseases classified elsewhere
Short description: Shig tox E coli [STEC] O157 causing diseases classd elswhr
- Chapter
- 1. Certain infectious and parasitic diseases
- Category
- B96
- Effective date
- October 1, 2026
Related codes in category B96
B96Oth bacterial agents as the cause of diseases classd elswhrB96.0Mycoplasma pneumoniae as the cause of diseases classd elswhrYesB96.1Klebsiella pneumoniae as the cause of diseases classd elswhrYesB96.2Escherichia coli as the cause of diseases classd elswhrB96.20Unsp Escherichia coli as the cause of diseases classd elswhrYesB96.22Oth shiga toxin E coli [STEC] causing diseases classd elswhrYesB96.23Unsp shig tox E coli [STEC] causing diseases classd elswhrYesB96.29Oth Escherichia coli as the cause of diseases classd elswhrYesB96.3Hemophilus influenzae as the cause of diseases classd elswhrYesB96.4Proteus (mirabilis) (morganii) causing dis classd elswhrYesB96.5Pseudomonas (mallei) causing diseases classd elswhrYesB96.6Bacteroides fragilis as the cause of diseases classd elswhrYes
Frequently asked questions
What is ICD-10 code B96.21?
B96.21 is an ICD-10-CM diagnosis code for Shiga toxin-producing Escherichia coli [E. coli] [STEC] O157 as the cause of diseases classified elsewhere.
Is B96.21 a billable code?
Yes. B96.21 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is B96.21 in?
B96.21 falls under Chapter 1: Certain infectious and parasitic diseases.
When did B96.21 become effective?
B96.21 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to B96.21?
B96.21 belongs to category B96, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.