C46.1 — Kaposi's sarcoma of soft tissue
C46.1 is a billable, specific ICD-10-CM code for kaposi's sarcoma of soft tissue. It is valid for submission on a claim.
Excludes2 — not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
- Kaposi's sarcoma of lymph glands and nodes (C46.3)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- 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
Other codes that can never be billed with C46.1
These codes carry an Excludes1 note pointing at C46.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading C46.1 alone.
Risk adjustment
C46.1 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 21 Lymphoma and Other Cancers0.671 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
C46.1 is named in 41 Medicare coverage policies — 41 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52370Billing and Coding: Bevacizumab and biosimilars
- A52450Billing and Coding: Paclitaxel (e.g., Taxol®/Abraxane ™)
- A52450Billing and Coding: Paclitaxel (e.g., Taxol®/Abraxane ™)
- A52479Oral Anticancer Drugs - Policy Article
How C46.1 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to C46.1.
- Kaposi's›sarcoma›connective tissue
- Sarcoma›Kaposi's›connective tissue
Related codes at this level
Codes that share C46. If C46.1 is not quite right, the correct code is usually one of these.
Questions about C46.1
- Is C46.1 a billable ICD-10-CM code?
- Yes. C46.1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does C46.1 sit in the tabular list?
- Neoplasms (C00-D49), in the block Malignant neoplasms of mesothelial and soft tissue (C45-C49).