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ICD-10-CM 2027 diagnosis code

Z20.8Contact with and (suspected) exposure to other communicable diseases

Not billable — use a more specific code

Z20.8 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.Short description: Contact w and exposure to oth communicable diseases

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About Z20.8

Z20.8 is the ICD-10-CM diagnosis code for contact with and (suspected) exposure to other communicable diseases. It belongs to category Z20 (contact with and (suspected) exposure to communicable diseases), block Z20-Z29 (persons with potential health hazards related to communicable diseases) and chapter 21 (factors influencing health status and contact with health services). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within Z20, choose Z20.8 (other communicable diseases) only when documentation doesn't support a more specific option: intestinal infectious diseases (Z20.0), tuberculosis (Z20.1), infections with a predominantly sexual mode of transmission (Z20.2), rabies (Z20.3), rubella (Z20.4), viral hepatitis (Z20.5), human immunodeficiency virus [HIV] (Z20.6), pediculosis, acariasis and other infestations (Z20.7) and 1 more.

To report this condition, pick the subcode that matches the documentation: Z20.81 (diseases), Z20.82 (diseases) and Z20.89 (diseases).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under Z20.8

Notes that apply from higher levels

Instructions written at a parent level also apply to Z20.8.

› From Z20 Contact with and (suspected) exposure to communicable diseases
Excludes1
  • carrier of infectious disease (Z22.-)
  • diagnosed current infectious or parasitic disease -see Alphabetic Index
Excludes2
  • personal history of infectious and parasitic diseases (Z86.1-)

Broader instructions also apply from Chapter 21: Factors influencing health status and contact with health services.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about Z20.8

Is Z20.8 billable?

No. Z20.8 is a header code. Report one of its more specific subcodes instead.