U.S. ICD-10-CM · FY 2027

C83.0 ICD-10-CM Code: Small cell B-cell lymphoma

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

C83.0

Small cell B-cell lymphoma

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where C83.0 sits

  1. 1

    Chapter 2

    Neoplasms (C00-D49)

  2. 2

    Section

    Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96)

  3. 3

    Category C83

    Non-follicular lymphoma

  4. 4

    Code C83.0

    Small cell B-cell lymphoma

More specific choices

Codes under C83.0

C83.0 is a non-billable category. Choose the child code that best matches the documented diagnosis.

C83.00

Small cell B-cell lymphoma, unspecified site

C83.01

Small cell B-cell lymphoma, lymph nodes of head, face, and neck

C83.02

Small cell B-cell lymphoma, intrathoracic lymph nodes

C83.03

Small cell B-cell lymphoma, intra-abdominal lymph nodes

C83.04

Small cell B-cell lymphoma, lymph nodes of axilla and upper limb

C83.05

Small cell B-cell lymphoma, lymph nodes of inguinal region and lower limb

C83.06

Small cell B-cell lymphoma, intrapelvic lymph nodes

C83.07

Small cell B-cell lymphoma, spleen

C83.08

Small cell B-cell lymphoma, lymph nodes of multiple sites

C83.09

Small cell B-cell lymphoma, extranodal and solid organ sites

C83.0A

Small cell B-cell lymphoma, in remission

Documentation details

Notes for this code

Inclusion terms

  • Lymphoplasmacytic lymphoma
  • Nodal marginal zone lymphoma
  • Non-leukemic variant of B-CLL
  • Splenic marginal zone lymphoma

Code first

No “code first” instruction is listed for C83.0.

Use additional code

No “use additional code” instruction is listed for C83.0.

Excludes1

Conditions that should not be reported together with this code.

  • chronic lymphocytic leukemia (C91.1)
  • mature T/NK-cell lymphomas (C84.-)
  • Waldenström macroglobulinemia (C88.00)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for C83.0.

Transparency

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.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code C83.0 mean?

C83.0 is the FY 2027 U.S. ICD-10-CM code for “Small cell B-cell lymphoma.”

Is C83.0 a billable or specific ICD-10-CM code?

No. C83.0 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is C83.0 located in ICD-10-CM?

C83.0 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.

What coding notes are listed for C83.0?

Its listed inclusion terms are Lymphoplasmacytic lymphoma; Nodal marginal zone lymphoma; Non-leukemic variant of B-CLL; Splenic marginal zone lymphoma. No code-first instruction is listed. Excludes1 notes: chronic lymphocytic leukemia (C91.1); mature T/NK-cell lymphomas (C84.-); Waldenström macroglobulinemia (C88.00). No Excludes2 note is listed.

Keep exploring

Related C83 codes

C83.1

Mantle cell lymphoma

C83.3

Diffuse large B-cell lymphoma

C83.5

Lymphoblastic (diffuse) lymphoma

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