2027 ICD-10-CM Diagnosis Code Z78Other specified health status

ICD-10-CM Codes›Z00–Z99›Z77-Z99›Z78

ICD-10-CM Z78
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

Z78 is a non-billable ICD-10-CM category code for other specified health status, so it cannot be submitted on claims. Use a more specific code from this category instead, such as Z78.0, Z78.1, and Z78.9.

Code Identity

ICD-10-CM Code
Z78
Billable Status
No — Non-Billable Category
Code Describes
Other specified health status
Short Description
Other specified health status
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
CategoryZ78Other specified health status
This CodeZ78Other specified health status

Specific Coding for Other specified health statusOverview

Non-specific codes like Z78 require more characters. Use one of these billable codes instead:

  • Use Z78.0 for Asymptomatic menopausal state

  • Use Z78.1 for Physical restraint status

  • Use Z78.9 for Other specified health status

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to Z78: 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.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

  • asymptomatic human immunodeficiency virus [HIV] infection status (Z21)
  • postprocedural status (Z93-Z99)
  • sex reassignment status (Z87.890-)

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.

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 Z78Overview

What is the ICD-10 code for other specified health status?

Z78 is the ICD-10-CM category for other specified health status, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is Z78 (Other specified health status) a billable code?

No. This is a category header that groups the codes for other specified health status, and headers cannot be submitted on claims. Claims for other specified health status need a more specific code from this category, such as Z78.0, Z78.1, and Z78.9.