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B97.12 ICD-10-CM Code: Echovirus 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)

B97.12

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

Echovirus as the cause of diseases classified elsewhere

This code indicates that echovirus (a type of virus that commonly causes respiratory and gastrointestinal infections) is the identified cause of a disease or condition that is classified and coded elsewhere in the medical record. It is used as a secondary code to specify the infectious agent responsible for the patient's illness.

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
B97Viral agents as the cause of diseases classified elsewhere
B97.1Enterovirus as the cause of diseases classified elsewhere
B97.12Echovirus as the cause of diseases classified elsewhere

Inclusion Terms

Official

ICD-10-CM does not list inclusion terms for B97.12 in this effective period.

Excludes 2

Official

ICD-10-CM does not list Excludes 2 notes for B97.12 in this effective period.

Related Child Codes

Official
B97.10Unspecified enterovirus as the cause of diseases classified elsewhere
B97.11Coxsackievirus as the cause of diseases classified elsewhere
B97.19Other enterovirus as the cause of diseases classified elsewhere

Includes

Official

ICD-10-CM does not list Includes notes for B97.12 in this effective period.

Excludes 1

Official

ICD-10-CM does not list Excludes 1 notes for B97.12 in this effective period.

Code First

Official

ICD-10-CM does not list Code First sequencing instructions for B97.12 in this effective period.

Use Additional

Official

ICD-10-CM does not list Use Additional Code instructions for B97.12 in this effective period.

Code Also

Official

ICD-10-CM does not list Code Also instructions for B97.12 in this effective period.

Buddy Documentation Tip

HCC Buddy guidance
This is a secondary code that must be paired with a primary diagnosis code describing the actual disease or condition caused by the echovirus (such as meningitis, enteritis, or respiratory infection)
Use this code only when the echovirus has been confirmed through laboratory testing or clinical documentation; do not use for suspected or presumed echovirus infections without confirmation

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 B97.12 an HCC code?

No. B97.12 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.

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

What This Code Means

B97.12 is the ICD-10-CM diagnosis code for echovirus as the cause of diseases classified elsewhere. This code indicates that echovirus (a type of virus that commonly causes respiratory and gastrointestinal infections) is the identified cause of a disease or condition that is classified and coded elsewhere in the medical record. It is used as a secondary code to specify the infectious agent responsible for the patient's illness. B97.12 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).

B97.12 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 secondary code that must be paired with a primary diagnosis code describing the actual disease or condition caused by the echovirus (such as meningitis, enteritis, or respiratory infection).

HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for B97.12 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

  • This is a secondary code that must be paired with a primary diagnosis code describing the actual disease or condition caused by the echovirus (such as meningitis, enteritis, or respiratory infection)
  • Use this code only when the echovirus has been confirmed through laboratory testing or clinical documentation; do not use for suspected or presumed echovirus infections without confirmation

Child Codes

Code Hierarchy

More on B97.12

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