Z81.8 – Family history of other mental and behavioral disorders

ICD-10-CM 2027 diagnosis code · Persons with potential health hazards related to family and personal history and certain conditions influencing health status

Billable code

ICD-10-CM code Z81.8
Code
Z81.8 (claims format: Z818)
Description
Family history of other mental and behavioral disorders
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
Z81

Notes for Z81.8

Applicable to:
  • Conditions classifiable elsewhere in F01-F99

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Block Z77-Z99

Code also:
  • any follow-up examination (Z08-Z09)

Index terms for Z81.8

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in Z81

Frequently asked questions

What is ICD-10 code Z81.8?

Z81.8 is the ICD-10-CM code for family history of other mental and behavioral disorders, in the block Z77-Z99 (Persons with potential health hazards related to family and personal history and certain conditions influencing health status).

Is Z81.8 a billable code?

Yes. Z81.8 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does Z81.8 belong to?

It belongs to category Z81 – Family history of mental and behavioral disorders.

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.