B9620 - E. coli bacteria identified as the cause of a disease classified elsewhere in medical records

International Classification of Diseases

Last updated: 3/24/2026

What is a ICD-10 Code?

ICD-10 (International Classification of Diseases, 10th Revision) codes are used to classify and code all diagnoses, symptoms, and procedures recorded in association with hospital care. These codes provide a standardized way to track health conditions and their treatment outcomes.

Detailed Description

This code indicates that Escherichia coli (E. coli) bacteria has been identified as the underlying cause of a disease or condition that is primarily classified under a different medical code. E. coli is a type of bacteria that can cause various infections throughout the body. This particular code is used when the specific strain or type of E. coli is not specified, and it's being documented as the causative agent for another diagnosed condition.

Additional Information

This is a supplementary code used alongside the primary diagnosis code for the actual disease or condition. The severity and treatment depend on what condition the E. coli is causing (such as urinary tract infection, gastroenteritis, or other infections).

Category

Infectious Disease - Bacterial Cause

Medical Specialty

Infectious Disease, Internal Medicine, Emergency Medicine

Expected Costs

Your actual cost will depend on your insurance coverage, provider location, and specific circumstances.

What's Required Before This

  • Laboratory confirmation of E. coli as causative organism
  • Primary diagnosis of the condition caused by E. coli

What to Expect After

  • Antibiotic treatment as prescribed
  • Follow-up laboratory testing
  • Monitoring for treatment response
  • Infection control measures

Why Understanding This Code Matters

On Your Medical Bill

This code appears on your medical bills to identify the specific service, procedure, drug, or medical diagnosis you received. Understanding what it means helps you verify you're being charged correctly and know what to expect.

For Your Health

Knowing what this code represents helps you understand your treatment plan, ask better questions during appointments, and track your healthcare journey more effectively.

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