Chapter XXI of 22
Factors influencing health status and contact with health services
Codes Z00–Z99Category range as published by CMS
Search within ICD-10-CM — results across the whole code set will include categories Z00–Z99 from this chapter.
About this chapter
ICD-10-CM Chapter XXI — “Factors influencing health status and contact with health services” — spans every category from Z00 through Z99. Each category in that range expands into a header code and one or more billable codes with additional specificity (laterality, episode of care, or clinical detail). Open any code’s own page to see its exact position in the hierarchy, its parent and children, and whether it’s billable.