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ICD-10-CM 2027 diagnosis code

C46Kaposi's sarcoma

Not billable — use a more specific code

C46 is a header code, so it can't be reported by itself. Choose one of the 8 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About C46

C46 is the ICD-10-CM diagnosis code for Kaposi's sarcoma. It belongs to block C45-C49 (malignant neoplasms of mesothelial and soft tissue) and chapter 2 (neoplasms). It is a header code, so it can't be reported by itself; one of its 8 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: C46.0 (of skin), C46.1 (of soft tissue), C46.2 (of palate), C46.3 (of lymph nodes), C46.4 (of gastrointestinal sites), C46.5 (of lung), C46.7 (of other sites) and C46.9 (unspecified).

Code first: any human immunodeficiency virus [HIV] disease (B20).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under C46

Coding notes

Code firstSequence the underlying condition first
  • any human immunodeficiency virus [HIV] disease (B20)

Notes that apply from higher levels

Instructions written at a parent level also apply to C46.

Broader instructions also apply from Chapter 2: Neoplasms.

Codes whose notes reference C46

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about C46

Is C46 billable?

No. C46 is a header code. Report one of its more specific subcodes instead.