Non-Billable / Non-Specific Code
ICD-10-CM Z86 is the diagnosis code for Personal history of certain other diseases. This code falls under the section "Persons with potential health hazards related to family and personal history and certain conditions influencing health status" within Chapter 21 — Factors influencing health status and contact with health services (Z00-Z99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where Z86 sits in the ICD-10-CM classification helps ensure proper coding:
No, Z86 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
Z86 is the ICD-10-CM diagnosis code for "Personal history of certain other diseases". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
Z86 is located in Section Z77-Z99 — "Persons with potential health hazards related to family and personal history and certain conditions influencing health status" within Chapter 21 of the ICD-10-CM Tabular List.
Z86 has 7 sub-code(s) that provide more specific detail: Z86.0, Z86.1, Z86.2, Z86.3, Z86.5 and more.
Use Z86 when the patients documented diagnosis matches "Personal history of certain other diseases" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Personal history of certain other diseases is Z86.
No, Z86 is non-billable. Use a more specific sub-code for primary diagnosis billing.
Z86 is in Chapter 21 of the ICD-10-CM Tabular List.
Yes, Z86 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.