Excludes1 pair
Z08 vs Z51-
Z08 and Z51 are not coded together. ICD-10-CM declares them mutually exclusive with an Excludes1 note — the two conditions are not expected to occur together, so exactly one of them is normally correct for a given encounter. The Official Guidelines carve out one exception: if the two conditions are clearly unrelated to each other, both may be reported.
Z08
Encounter for follow-up examination after completed treatment for malignant neoplasm
Billable
- Chapter 21
- Factors influencing health status and contact with health services
- Section
- Z00-Z13
Use when the record says
- Medical surveillance following completed treatment
Indexed under
- Examination › follow-up › malignant neoplasm
- Examination › following › treatment › malignant neoplasm
- Examination › follow-up › chemotherapy NEC › malignant neoplasm
- Examination › follow-up › radiotherapy NEC › malignant neoplasm
- Examination › follow-up › surgery NEC › malignant neoplasm
Z51
Encounter for other aftercare and medical care
Not billable
- Chapter 21
- Factors influencing health status and contact with health services
- Section
- Z40-Z53
Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027