C83.00 ICD-10-CM Code: Small cell B-cell lymphoma, unspecified site
C83.00 is the billable ICD-10-CM code for “Small cell B-cell lymphoma, unspecified site” in the FY 2027 U.S. code set, effective Oct 1, 2026.
Official description
C83.00Small cell B-cell lymphoma, unspecified site
ICD-10-CM diagnosis code · United States clinical modification
More specific than C83.00
View subcategoryC83.00 is an unspecified code, for when the note doesn’t say more. If it documents the type, cause, or site, one of these codes may fit better.
C83.01Small cell B-cell lymphoma, lymph nodes of head, face, and neckC83.02Small cell B-cell lymphoma, intrathoracic lymph nodesC83.03Small cell B-cell lymphoma, intra-abdominal lymph nodesC83.04Small cell B-cell lymphoma, lymph nodes of axilla and upper limbC83.05Small cell B-cell lymphoma, lymph nodes of inguinal region and lower limbC83.06Small cell B-cell lymphoma, intrapelvic lymph nodesC83.07Small cell B-cell lymphoma, spleenC83.08Small cell B-cell lymphoma, lymph nodes of multiple sitesC83.09Small cell B-cell lymphoma, extranodal and solid organ sitesC83.0ASmall cell B-cell lymphoma, in remissionWhere C83.00 sits
- 1
Chapter 2
Neoplasms (C00-D49)
- 2
Section
Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96)
- 3
Category C83
Non-follicular lymphoma
- 4
Subcategory C83.0
Small cell B-cell lymphoma
- 5
Code C83.00
Small cell B-cell lymphoma, unspecified site
Notes for this code
Inclusion terms
No inclusion terms are listed for C83.00.
Code first
No “code first” instruction is listed for C83.00.
Use additional code
No “use additional code” instruction is listed for C83.00.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for C83.00.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for C83.00.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code C83.00 mean?
C83.00 is the FY 2027 U.S. ICD-10-CM code for “Small cell B-cell lymphoma, unspecified site.”
Is C83.00 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, C83.00 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is C83.00 located in ICD-10-CM?
C83.00 is listed in Chapter 2, Neoplasms (C00-D49), within Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96) (C81–C96), under category C83, Non-follicular lymphoma and subcategory C83.0, Small cell B-cell lymphoma.
What coding notes are listed for C83.00?
No inclusion terms are listed for C83.00 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.