Z00.00 — Encounter for general adult medical examination without abnormal findings
Is Z00.00 billable?
Yes — Z00.00 is billable for FY2027. Z00.00 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. Z00.00 may be submitted for encounters from October 1, 2026 through September 30, 2027.
Z00.00 at a glance
| Code | Z00.00 |
|---|---|
| Description | Encounter for general adult medical examination without abnormal findings |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
What Medicare edits apply to Z00.00?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name Z00.00 directly.
CMS will reject this code as the principal diagnosis on an inpatient claim. It describes something other than the condition chiefly responsible for the admission.
Which MS-DRGs does Z00.00 group to?
Z00.00 sits in MDC 23 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 951Other Factors Influencing Health Statusmedical
How is Z00.00 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to Z00.00. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Examination (for) (following) (general) (of) (routine)
- Admission › examination at health care facility (for)
- Encounter › laboratory (with health service) (for)
- Encounter › radiological (with health service) (for)
- Encounter › X-ray of chest (with health service) (for)
- Examination › annual (for) (following) (general) (of) (routine)
- Examination › laboratory (for) (following) (general) (of) (routine)
- Examination › medical (for) (following) (general) (of) (routine)
- Examination › periodic (for) (following) (general) (of) (routine)
- Examination › radiological (for) (following) (general) (of) (routine)
- Test, tests, testing › laboratory (for)
- X-ray › routine (of)
Inclusion terms
Alternative wording in documentation that is classified to Z00.00.
- Encounter for adult health check-up NOS
Excludes1 — never code together — inherited from Z00
The conditions below can never be reported together with Z00.00 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- encounter for examination for administrative purposes (Z02.-)
Excludes1 — never code together — inherited from Z00.0
The conditions below can never be reported together with Z00.00 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- encounter for examination of sign or symptom- code to sign or symptom
- general health check-up of infant or child (Z00.12.-)
Excludes2 — not included here — inherited from Z00-Z13
The conditions below are not part of Z00.00, but a patient may have both at the same time. When documentation supports it, Z00.00 and the excluded code may both be reported.
Excludes2 — not included here — inherited from Z00
The conditions below are not part of Z00.00, but a patient may have both at the same time. When documentation supports it, Z00.00 and the excluded code may both be reported.
How long has Z00.00 existed?
Z00.00 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.