Z86.61 – Personal history of infections of the central nervous system
ICD-10-CM 2027 diagnosis code · Persons with potential health hazards related to family and personal history and certain conditions influencing health status
- Code
Z86.61(claims format:Z8661)- Description
- Personal history of infections of the central nervous system
- Billable
- Yes – valid for HIPAA-covered transactions
- 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 › Z86.6
Notes for Z86.61
- Personal history of encephalitis
- Personal history of meningitis
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)
Z86.6 – Personal history of diseases of the nervous system and sense organs
Block Z77-Z99
Index terms for Z86.61
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in Z86.6
Frequently asked questions
What is ICD-10 code Z86.61?
Z86.61 is the ICD-10-CM code for personal history of infections of the central nervous system, in the block Z77-Z99 (Persons with potential health hazards related to family and personal history and certain conditions influencing health status).
Is Z86.61 a billable code?
Yes. Z86.61 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does Z86.61 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.