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  6. 2024 ICD-10-CM Code Z03
Version 2024
Non-Billable Code

2024 ICD-10-CM Diagnosis Code Z03

Encounter for medical observation for suspected diseases and conditions ruled out

ICD-10-CM Code:
Z03
ICD-10 Code for:
Encntr for medical obs for susp diseases and cond ruled out
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Factors influencing health status and contact with health services
    (Z00–Z99)
    • Persons encountering health services for examinations
      (Z00-Z13)
      • Encounter for medical observation for suspected diseases and conditions ruled out
        (Z03)

Z03 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of encounter for medical observation for suspected diseases and conditions ruled out. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Encntr for medical obs for susp diseases and cond ruled out

Non-specific codes like Z03 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for encntr for medical obs for susp diseases and cond ruled out:

  • Use Z03.6 for Encounter for observation for suspected toxic effect from ingested substance ruled out - BILLABLE CODE

  • Z03.7 for Encounter for suspected maternal and fetal conditions ruled out - NON-BILLABLE CODE

  • Use Z03.71 for Encounter for suspected problem with amniotic cavity and membrane ruled out - BILLABLE CODE

  • Use Z03.72 for Encounter for suspected placental problem ruled out - BILLABLE CODE

  • Use Z03.73 for Encounter for suspected fetal anomaly ruled out - BILLABLE CODE

  • Use Z03.74 for Encounter for suspected problem with fetal growth ruled out - BILLABLE CODE

  • Use Z03.75 for Encounter for suspected cervical shortening ruled out - BILLABLE CODE

  • Use Z03.79 for Encounter for other suspected maternal and fetal conditions ruled out - BILLABLE CODE

  • Z03.8 for Encounter for observation for other suspected diseases and conditions ruled out - NON-BILLABLE CODE

  • Z03.81 for Encounter for observation for suspected exposure to biological agents ruled out - NON-BILLABLE CODE

  • Z03.82 for Encounter for observation for suspected foreign body ruled out - NON-BILLABLE CODE

  • Use Z03.83 for Encounter for observation for suspected conditions related to home physiologic monitoring device ruled out - BILLABLE CODE

  • Use Z03.89 for Encounter for observation for other suspected diseases and conditions ruled out - BILLABLE CODE

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • This category is to be used when a person without a diagnosis is suspected of having an abnormal condition, without signs or symptoms, which requires study, but after examination and observation, is ruled out. This category is also for use for administrative and legal observation status.

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • contact with and suspected exposures hazardous to health Z77
  • encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out Z05
  • person with feared complaint in whom no diagnosis is made Z71.1
  • signs or symptoms under study- code to signs or symptoms

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.