Z81.0
✓ Billable
Family history of intellectual disabilities
ICD-10-CM · FY2026 · Factors Influencing Health Status
Code
Z81.0
System
ICD-10-CM
Billable
Yes — valid for submission
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 Z81.0?
ICD-10-CM code Z81.0 represents Family history of intellectual disabilities. It is a billable diagnosis code in the Factors Influencing Health Status chapter, effective October 1, 2025 – September 30, 2026.
Is Z81.0 billable?
Yes. Z81.0 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is Z81.0 in?
Z81.0 belongs to the Factors Influencing Health Status chapter (Z00–Z99) of ICD-10-CM.
How do I search for an ICD-10 code for family history of a condition?
If you are looking for a code documenting a patient's family history of a condition (not their own past diagnosis), Z81.0 (Family history of intellectual disabilities) is in the correct Z80–Z84 family-history block. Family history codes are reported when a blood relative has had the condition, not the patient themselves.
Related codes in the Z81 category
Z81
Family history of mental and behavioral disorders
Non-billable
Z81.1
Family history of alcohol abuse and dependence
Billable
Z81.2
Family history of tobacco abuse and dependence
Billable
Z81.3
Family history of other psychoactive substance abuse and dependence
Billable
Z81.4
Family history of other substance abuse and dependence
Billable
Z81.8
Family history of other mental and behavioral disorders
Billable
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