C46.1 vs C47
C46.1 and C47 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 C47
Kaposi's sarcoma of soft tissue (C46.1)
C46.1
Kaposi's sarcoma of soft tissue
Billable
- Chapter 2
- Neoplasms
- Section
- C45-C49
Use when the record says
- Kaposi's sarcoma of blood vessel
- Kaposi's sarcoma of connective tissue
- Kaposi's sarcoma of fascia
- Kaposi's sarcoma of ligament
- Kaposi's sarcoma of lymphatic(s) NEC
- Kaposi's sarcoma of muscle
Indexed under
- Kaposi's › sarcoma › connective tissue
- Sarcoma › Kaposi's › connective tissue (of)
C47
Malignant neoplasm of peripheral nerves and autonomic nervous system
Not billable
- Chapter 2
- Neoplasms
- Section
- C45-C49
Use when the record says
- malignant neoplasm of sympathetic and parasympathetic nerves and ganglia
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