ICD-10 block

Z80–Z99 Persons with potential health hazards related to family and personal history and certain conditions influencing health status

The block Z80–Z99 of ICD-10 is titled “Persons with potential health hazards related to family and personal history and certain conditions influencing health status”. It is part of Chapter XXI, Factors influencing health status and contact with health services, and holds 20 groups.

What Z80–Z99 excludes

Conditions that look similar but belong under another code.

  • follow-up examination Z08-Z09
  • follow-up medical care and convalescence Z42-Z51, Z54.-
  • when family or personal history is the reason for special screening or other examination or investigation Z00-Z13
  • when the possibility that the fetus might be affected is the reason for observation or action during pregnancy O35.-

Codes in Z80–Z99

Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.

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