Z20.01

Billable
ChapterZ00–Z99
Ranksubcategory
Official Description

Contact with and (suspected) exposure to intestinal infectious diseases due to Escherichia coli (E. coli)

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 21: Factors Influencing Health Status and Contact with Health Services (Z00-Z99).
General instructions are available for the parent sections:
View Z20 Notes

Clinical Hierarchy

CH21Factors influencing health status and contact with health services (Z00-Z99)
Z20-Z29Persons with potential health hazards related to communicable diseases (Z20-Z29)
Z20Contact with and (suspected) exposure to communicable diseases
Z20.0Contact with and (suspected) exposure to intestinal infectious diseases
Z20.01Contact with and (suspected) exposure to intestinal infectious diseases due to Escherichia coli (E. coli)

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to Z20.01:

categoryZ20
Contact with and (suspected) exposure to communicable diseases
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to Z20.01. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

4 raw paths
Contact (with)2 unique routes
Escherichia coli (E. coli)→Z20.01
intestinal infectious disease NEC
Escherichia coli (E. coli)→Z20.01
Exposure (to)2 unique routes
Escherichia coli (E. coli)→Z20.01
intestinal infectious disease NEC
Escherichia coli (E. coli)→Z20.01

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 795
Normal Newborn
DRG 951
Other Factors Influencing Health Status

Cross Reference

Find Procedures (ICD-10-PCS)

Find surgical and procedural codes related to Contact with and (suspected) exposure to intestinal infectious diseases due to Escherichia coli (E. coli).

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