2027 ICD-10-CM Diagnosis Code Z86Personal history of certain other diseases

ICD-10-CM Codes›Z00–Z99›Z77-Z99›Z86

ICD-10-CM Z86
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

Z86 is a non-billable ICD-10-CM category code for personal history of certain other diseases, so it cannot be submitted on claims. Use a more specific code from this category instead, such as Z86.000, Z86.001, Z86.002, and Z86.003.

Code Identity

ICD-10-CM Code
Z86
Billable Status
No — Non-Billable Category
Code Describes
Personal history of certain other diseases
Short Description
Personal history of certain other diseases
Same as the full description in the CMS dataset.
Chapter
Z77-Z99
Persons with potential health hazards related to family and personal history and certain conditions influencing health status

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ77-Z99Persons with potential health hazards related to family and personal history and certain conditions influencing health status
CategoryZ86Personal history of certain other diseases
This CodeZ86Personal history of certain other diseases

Specific Coding for Personal history of certain other diseasesOverview

Non-specific codes like Z86 require more characters. Use one of these billable codes instead:

  • Z86.0 for Personal history of in-situ and benign neoplasms and neoplasms of uncertain behavior

  • Z86.00 for Personal history of in-situ neoplasm

  • Z86.01 for Personal history of benign neoplasm

  • Use Z86.03 for Personal history of neoplasm of uncertain behavior

  • Z86.1 for Personal history of infectious and parasitic diseases

  • Use Z86.11 for Personal history of tuberculosis

  • Use Z86.12 for Personal history of poliomyelitis

  • Use Z86.13 for Personal history of malaria

  • Use Z86.14 for Personal history of Methicillin resistant Staphylococcus aureus infection

  • Use Z86.15 for Personal history of latent tuberculosis infection

  • Use Z86.16 for Personal history of COVID-19

  • Use Z86.17 for Personal history of Clostridioides difficile infection

  • Use Z86.19 for Personal history of other infectious and parasitic diseases

  • Use Z86.2 for Personal history of diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism

  • Z86.3 for Personal history of endocrine, nutritional and metabolic diseases

  • Use Z86.31 for Personal history of diabetic foot ulcer

  • Use Z86.32 for Personal history of gestational diabetes

  • Use Z86.39 for Personal history of other endocrine, nutritional and metabolic disease

  • Z86.5 for Personal history of mental and behavioral disorders

  • Use Z86.51 for Personal history of combat and operational stress reaction

  • Use Z86.59 for Personal history of other mental and behavioral disorders

  • Z86.6 for Personal history of diseases of the nervous system and sense organs

  • Use Z86.61 for Personal history of infections of the central nervous system

  • Use Z86.69 for Personal history of other diseases of the nervous system and sense organs

  • Z86.7 for Personal history of diseases of the circulatory system

  • Z86.71 for Personal history of venous thrombosis and embolism

  • Use Z86.72 for Personal history of thrombophlebitis

  • Use Z86.73 for Personal history of transient ischemic attack (TIA), and cerebral infarction without residual deficits

  • Use Z86.74 for Personal history of sudden cardiac arrest

  • Use Z86.79 for Personal history of other diseases of the circulatory system

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to Z86: its own notes plus those printed at block Z77-Z99 and Chapter 21. A note printed at a category, block or chapter applies to every code under it.

Code First

The underlying condition named in the note is sequenced before this code.

  • any follow-up examination after treatment (Z09)

Code Also

A second code may be needed to fully describe the condition; the note gives no sequencing direction.

From Block Z77-Z99 Persons with potential health hazards related to family and personal history and certain conditions influencing health status applies to 567 codes
  • any follow-up examination (Z08-Z09)

Notes

General instructions on how these codes are used.

From Chapter 21 (Z00-Z99) Factors influencing health status and contact with health services applies to 1,425 codes
  • Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
  • (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
  • (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name Z86, its category, or a range that includes it.

Use Additional Code 1

These codes say to use an additional code from the note, and Z86 is one of the codes named.

  • Z09 Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm
    code to identify any applicable history of disease code (Z86.-, Z87.-)

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About Z86Overview

What is the ICD-10 code for personal history of certain other diseases?

Z86 is the ICD-10-CM category for personal history of certain other diseases, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is Z86 (Personal history of certain other diseases) a billable code?

No. This is a category header that groups the codes for personal history of certain other diseases, and headers cannot be submitted on claims. Claims for personal history of certain other diseases need a more specific code from this category, such as Z86.000, Z86.001, and Z86.002.

What is coded first with Z86?

The Code First note reads: any follow-up examination after treatment (Z09). When one of these applies, it is sequenced before Z86.