2027 ICD-10-CM Diagnosis Code Z02.84Encounter for child welfare exam

ICD-10-CM Codes›Z00–Z99›Z00-Z13›Z02

ICD-10-CM Z02.84
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

Z02.84 is a billable ICD-10-CM diagnosis code for encounter for child welfare exam. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 795, 951. The code is restricted by the Medicare Code Editor to pediatric patients (age 0 through 17), not accepted as a principal diagnosis, and exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Encounter for administrative purposes.

Code Identity

ICD-10-CM Code
Z02.84
Billable Status
Yes — Valid for Submission
Code Describes
Encounter for child welfare exam
Short Description
Encounter for child welfare exam
Same as the full description in the CMS dataset.
Parent Code
Z02.8
Encounter for other administrative examinations

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ00-Z13Persons encountering health services for examinations
CategoryZ02Encounter for administrative examination
This CodeZ02.84Encounter for child welfare exam

Code EditsBilling

Medicare Code Editor checks that affect claim validity for Z02.84.

Pediatric diagnoses
The Medicare Code Editor detects inconsistencies in pediatric cases by checking a patient's age and any diagnosis on the patient's record. The pediatric code edits apply to patients age range is 0–17 years inclusive (e.g., Reye's syndrome, routine child health exam).
Unacceptable principal diagnosis
There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Present on Admission (POA)Billing

Z02.84 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Persons encountering health services for examinations (Z00-Z13).

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to Z02.84: its own notes plus those printed at block Z00-Z13 and Chapter 21. A note printed at a category, block or chapter applies to every code under it.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Encounter for child welfare screening exam

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.

On Z02.84 itself
  • encounter for examination and observation for alleged child physical abuse (Z04.72)
  • encounter for examination and observation for alleged child rape (Z04.42)
From Block Z00-Z13 Persons encountering health services for examinations applies to 156 codes
  • examinations related to pregnancy and reproduction (Z30-Z36, Z39.-)

Notes

General instructions on how these codes are used.

From Block Z00-Z13 Persons encountering health services for examinations applies to 156 codes
  • Nonspecific abnormal findings disclosed at the time of these examinations are classified to categories R70-R94.
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 Z02.84, its category, or a range that includes it.

Excludes1 3

These codes carry an Excludes1 note naming Z02.84: they are not reported together with it, unless the two conditions are unrelated.

  • Z00 Encounter for general examination without complaint, suspected or reported diagnosis
    encounter for examination for administrative purposes (Z02.-) names Z02.-, which includes this code
  • Z01 Encounter for other special examination without complaint, suspected or reported diagnosis
    encounter for examination for administrative purposes (Z02.-) names Z02.-, which includes this code
  • Z02.7 Encounter for issue of medical certificate
    encounter for general medical examination (Z00-Z01, Z02.0-Z02.6, Z02.8-Z02.9) names Z02.8-Z02.9, which includes this code

Excludes2 1

These codes carry an Excludes2 note naming Z02.84: its condition is not part of those codes, and both may be reported when the patient has both.

  • Z71.84 Encounter for health counseling related to travel
    encounter for administrative examination (Z02.-) names Z02.-, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR FAC001
Encounter for administrative purposes
Default principal diagnosis: inpatient No · outpatient Yes

Code History & ChangesHistory

Replacement Z02.84 replaces the following previously assigned code(s):

  • Z02.89 - Encounter for other administrative examinations
FY 2024AddedAdded to the ICD-10-CM code setEffective October 1, 2023.
FY 2025–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About Z02.84Overview

What is the ICD-10 code for encounter for child welfare exam?

The ICD-10-CM code for encounter for child welfare exam is Z02.84 (sometimes written as Z0284). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is Z02.84 (Encounter for other administrative examinations) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report encounter for child welfare exam on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does Z02.84 group to?

On inpatient claims, encounter for child welfare exam maps to MS-DRG 951, 795, with relative weights from 0.2022 to 0.5574 depending on complications. Higher weights mean higher Medicare reimbursement.

Can Z02.84 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because encounter for child welfare exam describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.

Who can Z02.84 be reported for?

The Medicare Code Editor checks encounter for child welfare exam against patient demographics: this code is intended for pediatric patients (age 0 through 17). Claims outside these limits are flagged as inconsistent.