ICD-10 Z00.00
Billable / SpecificEncounter for general adult medical examination without abnormal findings
About ICD-10-CM Z00.00
ICD-10-CM code Z00.00 represents Encounter for general adult medical examination without abnormal findings. This is a billable/specific code in the Factors Influencing Health Status chapter (block Z00). The 2026 edition of ICD-10-CM Z00.00 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under Z00.00. Per CMS ICD-10-CM Tabular 2026.
- Encounter for adult health check-up NOS
Medicare LCD Coverage for Z00.00
Local Coverage Determinations (LCDs) from CMS MACs that list Z00.00 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing Z00.00.
3 Cigna
CPT Codes Commonly Billed with Z00.00
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- G0439 Annual Wellness Visit (subsequent) Internal Medicine
- 99202 New patient office visit — fever, headache, abdominal pain, cough, dyspnea, fatigue, dizziness, limb pain, nausea, routine exam, URI, UTI, pharyngitis, otitis, chest pain, weight loss Primary Care
- 99203 New patient office visit — common complaints plus chronic conditions: HTN, diabetes, hyperlipidemia, asthma, GERD, back pain, migraine, tachycardia, prediabetes Primary Care
- 80053 Comprehensive metabolic panel — diabetes, HTN, CKD, hyperlipidemia, electrolyte disorders, anemia, thyroid, prediabetes, abnormal labs, routine exam, screening Laboratory
- 80048 Basic metabolic panel — diabetes, HTN, CKD, electrolyte disorders, abnormal labs, routine exam, HF, dehydration Laboratory
- 85025 CBC with differential — anemia, iron deficiency, fatigue, thrombocytopenia, neutropenia, leukemia, lymphoma, abnormal labs, routine exam, screening, fever, elevated WBC Laboratory
- 85027 CBC automated — anemia, iron deficiency, fatigue, routine exam, abnormal labs, melena, hematemesis Laboratory
- 84443 TSH — hypothyroidism, hyperthyroidism, thyroiditis, weight loss, weight gain, post-surgical hypothyroidism, fatigue, routine exam, screening Laboratory
Convert Z00.00 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| Z00.00 | V700 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To Z00.00
Other codes in section Z00-Z13 (Persons encountering health services for examinations).
ICD-10 Z00.00, Billing FAQ
Is ICD-10 code Z00.00 billable? +
Yes, Z00.00 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to Z00.00? +
ICD-10 Z00.00 includes: Encounter for adult health check-up NOS.
What CPT codes are commonly billed with Z00.00? +
Procedures frequently paired with Z00.00 include: G0439, 99202, 99203, 80053, 80048.
What ICD-9 codes does Z00.00 map to? +
Per CMS GEMs, Z00.00 maps to ICD-9 codes: V700. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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