C63.9 vs C68
C63.9 and C68 can never be reported together. ICD-10-CM declares them mutually exclusive with an Excludes1 note, meaning the two conditions cannot occur in the same patient — so exactly one of them is correct for any given encounter.
The official note, declared on C68
malignant neoplasm of male genitourinary tract NOS (C63.9)
C63.9
Malignant neoplasm of male genital organ, unspecified
BillableUnspecified
- Chapter 2
- Neoplasms
- Section
- C60-C63
Use when the record says
- Malignant neoplasm of male genitourinary tract NOS
Indexed under
- Melanoma › skin › male genital organNEC (malignant)
C68
Malignant neoplasm of other and unspecified urinary organs
Not billable
- Chapter 2
- Neoplasms
- Section
- C64-C68
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