ICD-10-CM › Z00-Z99 › Z20-Z29 › Z codes › Z20

Z20

Contact with and (suspected) exposure to communicable diseases

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 10 more specific codes instead:

  • Z20.0 Contact with and (suspected) exposure to intestinal infectious diseases (also a header)
  • Z20.1 Contact with and (suspected) exposure to tuberculosis
  • Z20.2 Contact with and (suspected) exposure to infections with a predominantly sexual mode of transmission
  • Z20.3 Contact with and (suspected) exposure to rabies
  • Z20.4 Contact with and (suspected) exposure to rubella
  • Z20.5 Contact with and (suspected) exposure to viral hepatitis
  • Z20.6 Contact with and (suspected) exposure to human immunodeficiency virus [HIV]
  • Z20.7 Contact with and (suspected) exposure to pediculosis, acariasis and other infestations
  • Z20.8 Contact with and (suspected) exposure to other communicable diseases (also a header)
  • Z20.9 Contact with and (suspected) exposure to unspecified communicable disease

What has happened to this code

Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2012 Added to the draft code set draft Contact with and (suspected) exposure to communicable diseases

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

This code

Excludes1 - never coded here

  • carrier of infectious disease (Z22.-)
  • diagnosed current infectious or parasitic disease -see Alphabetic Index

Excludes2 - not included here

  • personal history of infectious and parasitic diseases (Z86.1-)