All ICD10 Codes

Z20

Non-Billable
ChapterZ00–Z99
Rankcategory
Official Description

Contact with and (suspected) exposure to communicable diseases

Use a more specific code (8 billable, 2 non-billable)
Z20.0Contact with and (suspected) exposure to intestinal infectious diseaseshas subcodesZ20.1Contact with and (suspected) exposure to tuberculosisZ20.2Contact with and (suspected) exposure to infections with a predominantly sexual mode of transmissionZ20.3Contact with and (suspected) exposure to rabiesZ20.4Contact with and (suspected) exposure to rubellaZ20.5Contact with and (suspected) exposure to viral hepatitisZ20.6Contact with and (suspected) exposure to human immunodeficiency virus [HIV]Z20.7Contact with and (suspected) exposure to pediculosis, acariasis and other infestationsZ20.8Contact with and (suspected) exposure to other communicable diseaseshas subcodesZ20.9Contact with and (suspected) exposure to unspecified communicable disease
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 21: Factors Influencing Health Status and Contact with Health Services (Z00-Z99).

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • carrier of infectious disease (Z22.-)
  • diagnosed current infectious or parasitic disease -see Alphabetic Index
Excludes2(Not included here. Code separately if applicable.)
  • personal history of infectious and parasitic diseases (Z86.1-)

Clinical Hierarchy

BillableHas subcodes
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 diseasesNot billable
Z20.0Contact with and (suspected) exposure to intestinal infectious diseasesSubcodes
Z20.1Contact with and (suspected) exposure to tuberculosisBillable
Z20.2Contact with and (suspected) exposure to infections with a predominantly sexual mode of transmissionBillable
Z20.3Contact with and (suspected) exposure to rabiesBillable
Z20.4Contact with and (suspected) exposure to rubellaBillable
Z20.5Contact with and (suspected) exposure to viral hepatitisBillable
Z20.6Contact with and (suspected) exposure to human immunodeficiency virus [HIV]Billable
Z20.7Contact with and (suspected) exposure to pediculosis, acariasis and other infestationsBillable
Z20.8Contact with and (suspected) exposure to other communicable diseasesSubcodes
Z20.9Contact with and (suspected) exposure to unspecified communicable diseaseBillable

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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