C85.1Header code — not billable
Unspecified B-cell lymphoma
- Chapter
- 2. Neoplasms
- Category
- C85
- Effective date
- October 1, 2026
Related codes in category C85
C85Oth and unspecified types of non-Hodgkin lymphomaC85.10Unspecified B-cell lymphoma, unspecified siteYesC85.11Unsp B-cell lymphoma, lymph nodes of head, face, and neckYesC85.12Unspecified B-cell lymphoma, intrathoracic lymph nodesYesC85.13Unspecified B-cell lymphoma, intra-abdominal lymph nodesYesC85.14Unsp B-cell lymphoma, lymph nodes of axilla and upper limbYesC85.15Unsp B-cell lymphoma, nodes of ing region and lower limbYesC85.16Unspecified B-cell lymphoma, intrapelvic lymph nodesYesC85.17Unspecified B-cell lymphoma, spleenYesC85.18Unspecified B-cell lymphoma, lymph nodes of multiple sitesYesC85.19Unsp B-cell lymphoma, extranodal and solid organ sitesYesC85.1AUnspecified B-cell lymphoma, in remissionYes
Frequently asked questions
What is ICD-10 code C85.1?
C85.1 is an ICD-10-CM diagnosis code for Unspecified B-cell lymphoma.
Is C85.1 a billable code?
No. C85.1 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is C85.1 in?
C85.1 falls under Chapter 2: Neoplasms.
When did C85.1 become effective?
C85.1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to C85.1?
C85.1 belongs to category C85, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.