Z86.6 – Personal history of diseases of the nervous system and sense organs
ICD-10-CM 2027 diagnosis code · Persons with potential health hazards related to family and personal history and certain conditions influencing health status
- Code
Z86.6(claims format:Z866)- Description
- Personal history of diseases of the nervous system and sense organs
- Short description
- Personal history of dis of the nervous sys and sense organs
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 21. Factors influencing health status and contact with health services (Z00-Z99)
- Block
- Z77-Z99 Persons with potential health hazards related to family and personal history and certain conditions influencing health status
- Parent codes
- Z86
Billable codes under Z86.6
Z86.6 is a header code and cannot be used on claims. Choose the most specific code:
Notes for Z86.6
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Z86 – Personal history of certain other diseases
- any follow-up examination after treatment (Z09)
Block Z77-Z99
Related codes in Z86
- Z86.0 – Personal history of in-situ and benign neoplasms and neoplasms of uncertain behaviorHeader
- Z86.1 – Personal history of infectious and parasitic diseasesHeader
- Z86.2 – Personal history of diseases of the blood and blood-forming organs and certain disorders involving the immune mechanismBillable
- Z86.3 – Personal history of endocrine, nutritional and metabolic diseasesHeader
- Z86.5 – Personal history of mental and behavioral disordersHeader
- Z86.7 – Personal history of diseases of the circulatory systemHeader
Frequently asked questions
What is ICD-10 code Z86.6?
Z86.6 is the ICD-10-CM code for personal history of diseases of the nervous system and sense organs, in the block Z77-Z99 (Persons with potential health hazards related to family and personal history and certain conditions influencing health status).
Is Z86.6 a billable code?
No. Z86.6 is a header code with more specific child codes; report one of the billable codes listed above.
What category does Z86.6 belong to?
It belongs to category Z86 – Personal history of certain other diseases.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.