2024 ICD-10-CM Diagnosis Code Z00.121
Encounter for routine child health examination with abnormal findings
- ICD-10-CM Code:
- Z00.121
- ICD-10 Code for:
- Encounter for routine child health exam w abnormal findings
- Is Billable?
- Yes - Valid for Submission
- Code Navigator:
Z00.121 is a billable diagnosis code used to specify a medical diagnosis of encounter for routine child health examination with abnormal findings. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024. The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.
The code Z00.121 is applicable for patients aged 0 through 17 years inclusive. It is clinically and virtually impossible to use this code on a patient outside the stated age range.
The code is commonly used in pediatrics medical specialties to specify clinical concepts such as routine child health examination.
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- 1 year examination abnormal - for observation
- 1 year examination abnormal - on treatment
- 1 year examination abnormal - referred
- 10 day examination abnormal - for observation
- 10 day examination abnormal - on treatment
- 10 year examination abnormal - for observation
- 10 year examination abnormal - on treatment
- 10 year examination abnormal - referred
- 15 year examination abnormal - for observation
- 15 year examination abnormal - on treatment
- 15 year examination abnormal - referred
- 18 month examination abnormal - for observation
- 18 month examination abnormal - on treatment
- 18 month examination abnormal - referred
- 2.5 year examination abnormal - for observation
- 2.5 year examination abnormal - on treatment
- 2.5 year examination abnormal - referred
- 3.5 year examination abnormal - for observation
- 3.5 year examination abnormal - on treatment
- 3.5 year examination abnormal - referred
- 4.5 year examination abnormal - for observation
- 4.5 year examination abnormal - on treatment
- 4.5 year examination abnormal - referred
- 6 week examination abnormal - for observation
- 6 week examination abnormal - on treatment
- 6 week examination abnormal - referred
- 8 month examination abnormal - for observation
- 8 month examination abnormal - on treatment
- 8 month examination abnormal - referred
- 8 week examination abnormal - for observation
- 8 week examination abnormal - on treatment
- 8 week examination abnormal - referred
- 8-9 month examination abnormal - for observation
- 8-9 month examination abnormal - on treatment
- 8-9 month examination abnormal - referred
- Abnormal wellness exam
- Child 21 month examination abnormal - for observation
- Child 21 month examination abnormal - on treatment
- Child 21 month examination abnormal: refer
- Child 3 year exam abnormal - for observation
- Child 3 year exam abnormal - on treatment
- Child 3 year exam abnormal - referred
- Child 39 month examination abnormal - for observation
- Child 39 month examination abnormal - on treatment
- Child 39 month examination abnormal - referred
- Child 6 month examination abnormal - for observation
- Child 6 month examination abnormal - on treatment
- Child 6 month examination abnormal - referred
- Child 7 month examination abnormal - on treatment
- Child 7 month examination abnormal - referred
- Seen by pediatric neurologist
- Seen by pediatric oncologist
- Seen by pediatrician
- Seen by pediatrician
Clinical Classification
Clinical Category is Medical examination/evaluation
- CCSR Category Code: FAC014
- Inpatient Default CCSR: X - Not applicable.
- Outpatient Default CCSR: Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.
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.
Use Additional Code
Use Additional CodeThe “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
- code to identify abnormal findings
Index to Diseases and Injuries References
The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).
- - Admission (for) - See Also: Encounter (for);
- - examination at health care facility (adult) - See Also: Examination; - Z00.00
- - hearing - Z01.10
- - infant or child (over 28 days old) - Z00.129
- - with abnormal findings - Z00.121
- - infant or child (over 28 days old) - Z00.129
- - vision - Z01.00
- - infant or child (over 28 days old) - Z00.129
- - with abnormal findings - Z00.121
- - infant or child (over 28 days old) - Z00.129
- - hearing - Z01.10
- - vision examination - Z01.00
- - infant or child (over 28 days old) - Z00.129
- - with abnormal findings - Z00.121
- - infant or child (over 28 days old) - Z00.129
- - examination at health care facility (adult) - See Also: Examination; - Z00.00
- - Examination (for) (following) (general) (of) (routine) - Z00.00
- - child (over 28 days old) - Z00.129
- - with abnormal findings - Z00.121
- - hearing - Z01.10
- - infant or child (over 28 days old) - Z00.129
- - with abnormal findings - Z00.121
- - infant or child (over 28 days old) - Z00.129
- - vision - Z01.00
- - infant or child (over 28 days old) - Z00.129
- - with abnormal findings - Z00.121
- - infant or child (over 28 days old) - Z00.129
- - child (over 28 days old) - Z00.129
- - Hearing examination - Z01.10
- - infant or child (over 28 days old) - Z00.129
- - with abnormal findings - Z00.121
- - infant or child (over 28 days old) - Z00.129
- - Immunization - See Also: Vaccination;
- - appropriate for age
- - child (over 28 days old) - Z00.129
- - with abnormal findings - Z00.121
- - child (over 28 days old) - Z00.129
- - appropriate for age
- - Screening (for) - Z13.9
- - infant or child (over 28 days old) - Z00.129
- - with abnormal findings - Z00.121
- - infant or child (over 28 days old) - Z00.129
- - Test, tests, testing (for)
- - hearing - Z01.10
- - infant or child (over 28 days old) - Z00.129
- - with abnormal findings - Z00.121
- - infant or child (over 28 days old) - Z00.129
- - vision - Z01.00
- - infant or child (over 28 days old) - Z00.129
- - with abnormal findings - Z00.121
- - infant or child (over 28 days old) - Z00.129
- - hearing - Z01.10
Code Edits
The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10-CM Code Edits are applicable to this code:
- 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)
Z00.121 is exempt from POA reporting - The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement. Review other POA exempt codes here.
CMS POA Indicator Options and Definitions
POA Indicator | Reason for Code | CMS will pay the CC/MCC DRG? |
---|---|---|
Y | Diagnosis was present at time of inpatient admission. | YES |
N | Diagnosis was not present at time of inpatient admission. | NO |
U | Documentation insufficient to determine if the condition was present at the time of inpatient admission. | NO |
W | Clinically undetermined - unable to clinically determine whether the condition was present at the time of inpatient admission. | YES |
1 | Unreported/Not used - Exempt from POA reporting. | NO |
Convert Z00.121 to ICD-9-CM
- ICD-9-CM Code: V20.2 - Routin child health exam
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.
Patient Education
Health Checkup
Regular health exams and tests can help find problems before they start. They also can help find problems early, when your chances for treatment and cure are better. Which exams and screenings you need depends on your age, health and family history, and lifestyle choices such as what you eat, how active you are, and whether you smoke.
To make the most of your next check-up, here are some things to do before you go:
- Review your family medical history
- Find out if you are due for any general screenings or vaccinations
- Write down a list of issues and questions to take with you
Centers for Disease Control and Prevention
[Learn More in MedlinePlus]
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.