Z20.01 – Contact with and (suspected) exposure to intestinal infectious diseases due to Escherichia coli (E. coli)
ICD-10-CM 2027 diagnosis code · Persons with potential health hazards related to communicable diseases
- Code
Z20.01(claims format:Z2001)- Description
- Contact with and (suspected) exposure to intestinal infectious diseases due to Escherichia coli (E. coli)
- Short description
- Cntct w and expsr to intestnl infct dis d/t E coli (E. coli)
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 21. Factors influencing health status and contact with health services (Z00-Z99)
- Block
- Z20-Z29 Persons with potential health hazards related to communicable diseases
- Parent codes
- Z20 › Z20.0
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Z20 – Contact with and (suspected) exposure to communicable diseases
- carrier of infectious disease (Z22.-)
- diagnosed current infectious or parasitic disease -see Alphabetic Index
- personal history of infectious and parasitic diseases (Z86.1-)
Index terms for Z20.01
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in Z20.0
Frequently asked questions
What is ICD-10 code Z20.01?
Z20.01 is the ICD-10-CM code for contact with and (suspected) exposure to intestinal infectious diseases due to Escherichia coli (E. coli), in the block Z20-Z29 (Persons with potential health hazards related to communicable diseases).
Is Z20.01 a billable code?
Yes. Z20.01 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does Z20.01 belong to?
It belongs to category Z20 – Contact with and (suspected) exposure to communicable diseases.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.