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B96.29 ICD-10-CM Code: Other Escherichia coli [E. coli] as the cause of diseases classified elsewhere

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FY 2026 Apr update / Certain infectious and parasitic diseases (A00-B99) / Bacterial and viral infectious agents (B95-B97)

B96.29

Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidance

Other Escherichia coli [E. coli] as the cause of diseases classified elsewhere

This code indicates that a disease or infection was caused by a specific strain of E. coli bacteria other than the common O157:H7 strain. It is used as a secondary code to identify the bacterial cause when E. coli is responsible for an infection or disease documented in the patient's medical record.

CMS-HCC V28

0

0

RAF 0

CMS-HCC V24

0

0

RAF 0

ACA/HHS

0

0

RAF 0

ESRD/PACE

0

0

RAF 0

RXHCC

0

0

RAF 0

Code Trumping

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Code Book Path

Official
B96Other bacterial agents as the cause of diseases classified elsewhere
B96.2Escherichia coli [E. coli ] as the cause of diseases classified elsewhere
B96.29Other Escherichia coli [E. coli] as the cause of diseases classified elsewhere

Inclusion Terms

Official
  • Non-Shiga toxin-producing E. coli

Excludes 2

Official

ICD-10-CM does not list Excludes 2 notes for B96.29 in this effective period.

Related Child Codes

Official
B96.20Unspecified Escherichia coli [E. coli] as the cause of diseases classified elsewhere
B96.21Shiga toxin-producing Escherichia coli [E. coli] [STEC] O157 as the cause of diseases classified elsewhere
B96.22Other specified Shiga toxin-producing Escherichia coli [E. coli] [STEC] as the cause of diseases classified elsewhere
B96.23Unspecified Shiga toxin-producing Escherichia coli [E. coli] [STEC] as the cause of diseases classified elsewhere

Includes

Official

ICD-10-CM does not list Includes notes for B96.29 in this effective period.

Excludes 1

Official

ICD-10-CM does not list Excludes 1 notes for B96.29 in this effective period.

Code First

Official

ICD-10-CM does not list Code First sequencing instructions for B96.29 in this effective period.

Use Additional

Official

ICD-10-CM does not list Use Additional Code instructions for B96.29 in this effective period.

Code Also

Official

ICD-10-CM does not list Code Also instructions for B96.29 in this effective period.

Buddy Documentation Tip

HCC Buddy guidance
This is a 'cause of' code and should never be used as a primary diagnosis code; it must be paired with a code describing the actual infection or disease (such as urinary tract infection, gastroenteritis, or sepsis)
Use this code only when the medical record specifically documents E. coli as the causative organism; if the strain is identified as O157:H7, use code B96.20 instead

Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.

Is B96.29 an HCC code?

No. B96.29 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.

Coder workflow notes

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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

B96.29 is the ICD-10-CM diagnosis code for other escherichia coli [e. coli] as the cause of diseases classified elsewhere. This code indicates that a disease or infection was caused by a specific strain of E. coli bacteria other than the common O157:H7 strain. It is used as a secondary code to identify the bacterial cause when E. coli is responsible for an infection or disease documented in the patient's medical record. B96.29 sits in the ICD-10-CM chapter for certain infectious and parasitic diseases (a00-b99), within the section covering bacterial and viral infectious agents (b95-b97).

B96.29 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.

This is a 'cause of' code and should never be used as a primary diagnosis code; it must be paired with a code describing the actual infection or disease (such as urinary tract infection, gastroenteritis, or sepsis).

HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for B96.29 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

  • This is a 'cause of' code and should never be used as a primary diagnosis code; it must be paired with a code describing the actual infection or disease (such as urinary tract infection, gastroenteritis, or sepsis)
  • Use this code only when the medical record specifically documents E. coli as the causative organism; if the strain is identified as O157:H7, use code B96.20 instead

Child Codes

Code Hierarchy

Work B96.29 in HCC Buddy

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