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Z86.5 ⚠ Non-billable

Personal history of mental and behavioral disorders

ICD-10-CM · FY2026 · Factors Influencing Health Status

Code
Z86.5
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Factors Influencing Health Status
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Frequently asked questions

What is ICD-10 code Z86.5?
ICD-10-CM code Z86.5 represents Personal history of mental and behavioral disorders. It is a non-billable header code requiring a more specific subcategory in the Factors Influencing Health Status chapter, effective October 1, 2025 – September 30, 2026.
Is Z86.5 billable?
No. Z86.5 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is Z86.5 in?
Z86.5 belongs to the Factors Influencing Health Status chapter (Z00–Z99) of ICD-10-CM.
How do I search for an ICD-10 code for personal history of a condition?
If you are looking for a code documenting a patient's own past diagnosis that is now resolved or inactive — sometimes searched as "history of [condition] ICD-10" — Z86.5 (Personal history of mental and behavioral disorders) is in the correct Z85–Z87 personal-history block. These codes are reported when a condition no longer requires active treatment but is still clinically relevant.

Related codes in the Z86 category

Z86 Personal history of certain other diseases Non-billable Z86.0 Personal history of in-situ and benign neoplasms and neoplasms of uncertain behavior Non-billable Z86.1 Personal history of infectious and parasitic diseases Non-billable Z86.2 Personal history of diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism Billable Z86.3 Personal history of endocrine, nutritional and metabolic diseases Non-billable Z86.6 Personal history of diseases of the nervous system and sense organs Non-billable Z86.7 Personal history of diseases of the circulatory system Non-billable Z86.00 Personal history of in-situ neoplasm Non-billable

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