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

Z86: Personal history of certain other diseases

The Z86 ICD-10 code refers to a group of conditions under the title 'Personal history of certain other diseases.' This indicates that the patient has previously been diagnosed with and treated for specific illnesses. Since these are historical conditions, the patient may not currently have symptoms. However, the past medical history remains relevant because these conditions could have ongoing impacts on health or might recur. The group includes various diseases, each with its own characteristics and effects on different body systems. The progression, transmission, and manifestation of symptoms vary greatly within this group. For instance, someone with a history of cardiovascular disease might be at increased risk for future heart problems, while someone with a past infectious disease could have increased susceptibility to the same or similar infections.